Change search
Link to record
Permanent link

Direct link
BETA
Alternative names
Publications (10 of 156) Show all publications
Li, C., Johansson, M., Sablong, R. J. & Koning, C. E. (2017). High performance thiol-ene thermosets based on fully bio-based poly(limonene carbonate)s. European Polymer Journal, 96, 337-349.
Open this publication in new window or tab >>High performance thiol-ene thermosets based on fully bio-based poly(limonene carbonate)s
2017 (English)In: European Polymer Journal, ISSN 0014-3057, E-ISSN 1873-1945, Vol. 96, 337-349 p.Article in journal (Refereed) Published
Abstract [en]

High glass transition temperature (Tg) thiol-ene networks (TENs) based on poly(limonene carbonate)s (PLCs), derived from orange oils and of potential degradability are described here. PLCs with moderate molecular weight were prepared by copolymerization of limonene oxide with CO2 and subsequent breakdown reactions. These PLCs were cured with multifunctional thiol monomers in the presence of thermal initiators via thiol-ene chemistry to generate poly(thioether-cocarbonate) networks. The thermal curing experiments were optimized by a kinetic study using real-time ATR-FTIR, in which a delayed gelation was observed. For the first time, an interesting "cage" effect was observed during the network formation initiated by DCP, in which the addition reactions of pendant isopropenyls on high molecular weight PLC chains were significantly enhanced by thiol-ene crosslinking at 160 degrees C. The resulting homogeneous TENs with high T(g)s (> 100 degrees C) and a wide range of thermomechanical properties, including rubbery moduli from 2.9 to 28.2 MPa, were obtained. The TENs also showed promising properties such as high transparency, good acetone resistance and high hardness, suggesting their potential application in coatings.

Place, publisher, year, edition, pages
Elsevier, 2017
National Category
Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-218229 (URN)10.1016/j.eurpolymj.2017.09.034 (DOI)000414887700029 ()2-s2.0-8503010479 (Scopus ID)
Note

QC 20171128

Available from: 2017-11-28 Created: 2017-11-28 Last updated: 2017-11-28Bibliographically approved
Ihrner, N. & Johansson, M. (2017). Improved performance of solid polymer electrolytes for structural batteries utilizing plasticizing co-solvents. Journal of Applied Polymer Science, 134(23), Article ID 44917.
Open this publication in new window or tab >>Improved performance of solid polymer electrolytes for structural batteries utilizing plasticizing co-solvents
2017 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 134, no 23, 44917Article in journal (Refereed) Published
Abstract [en]

This study describes the formulation, curing, and characterization of solid polymer electrolytes (SPE) based on plasticized poly(ethylene glycol)-methacrylate, intended for use in structural batteries that utilizes carbon fibers as electrodes. The effect of crosslink density, salt concentration, and amount of plasticizer has been investigated. Adding a plasticizing solvent increases the overall performance of the SPE. Increased ionic conductivity and mechanical performance can be attained compared to similar systems without plasticizer. At ambient temperature, ionic conductivity (sigma) of 3.3 x 10(-5) Scm(-1), with a corresponding storage modulus (E) of 20 MPa are reached.

Place, publisher, year, edition, pages
WILEY, 2017
Keyword
lithium ion, plasticizer, solid polymer electrolyte, structural battery, thermoset
National Category
Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-206228 (URN)10.1002/app.44917 (DOI)000397614000016 ()2-s2.0-85012878893 (Scopus ID)
Note

QC 20170517

Available from: 2017-05-17 Created: 2017-05-17 Last updated: 2017-05-19Bibliographically approved
Nameer, S., Semlitsch, S., Martinelle, M. & Johansson, M. (2017). One-pot enzyme-catalyzed synthesis of dual-functional polyester macromers towards surface-active hydrophobic films. RSC Advances, 7(79), 50294-50299.
Open this publication in new window or tab >>One-pot enzyme-catalyzed synthesis of dual-functional polyester macromers towards surface-active hydrophobic films
2017 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 7, no 79, 50294-50299 p.Article in journal (Refereed) Published
Abstract [en]

Selective enzyme catalysis is a valuable tool for the processing of monomers into value-added materials. In the present study natural resources were used to retrieve an omega-hydroxy fatty acid monomer containing an epoxide functionality. A procedure was developed for the synthesis of dual-functional oligomers by utilizing lipase catalysis in a one-pot synthesis route. The chemoselectivity of the enzyme allowed addition of thiol monomers to the retrieved epoxy monomers, without harming the epoxides, achieving a thiol-epoxy functional polyester resin. The synthesis reached full conversion (> 99%) after 8 h. It was possible to selectively crosslink the resin through UV-initiated cationic polymerization of the epoxides into thiol-functional thermosets. The curing performance was followed in situ by real-time FTIR. The thiol groups on the surface of the film were accessible for post-modification.

Place, publisher, year, edition, pages
ROYAL SOC CHEMISTRY, 2017
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-217462 (URN)10.1039/c7ra09828f (DOI)000413944200060 ()2-s2.0-85032902830 (Scopus ID)
Note

QC 20171117

Available from: 2017-11-17 Created: 2017-11-17 Last updated: 2017-11-29Bibliographically approved
Jawerth, M., Johansson, M., Lundmark, S., Gioia, C. & Lawoko, M. (2017). Renewable Thiol-Ene Thermosets Based on Refined and Selectively Allylated Industrial Lignin. ACS Sustainable Chemistry and Engineering, 5(11), 10918-10925.
Open this publication in new window or tab >>Renewable Thiol-Ene Thermosets Based on Refined and Selectively Allylated Industrial Lignin
Show others...
2017 (English)In: ACS Sustainable Chemistry and Engineering, ISSN 2168-0485, Vol. 5, no 11, 10918-10925 p.Article in journal (Refereed) Published
Abstract [en]

Aromatic material constituents derived from renewable resources are attractive for new biobased polymer systems. Lignin, derived from lignocellulosic biomass, is the most abundant natural source of such structures. Technical lignins are, however, heterogeneous in both structure and polydispersity and require a refining to obtain a more reproducible material. In this paper the ethanol-soluble fraction of Lignoboost Kraft lignin is selectively allylated using allyl chloride by means of a mild and industrially scalable procedure. Analysis using 1H-, 31P-, and 2D HSQC NMR give a detailed structural description of lignin, providing evidence of its functionalization and that the suggested procedure is selective toward phenols with a conversion of at least 95%. The selectively modified lignin is subsequently cross-linked using thermally induced thiol-ene chemistry. FT-IR is utilized to confirm the cross-linking reaction, and DSC measurements determined the Tg of the thermosets to be 45-65 °C depending on reactive group stoichiometry. The potential of lignin as a constituent in a thermoset application is demonstrated and discussed.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2017
Keyword
Controlled refinery, Ethanol, Lignoboost Kraft lignin, Scalable procedure, Selective allylation, Thiol-ene thermoset
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-218122 (URN)10.1021/acssuschemeng.7b02822 (DOI)000414825900151 ()2-s2.0-85033478836 (Scopus ID)
Funder
Knut and Alice Wallenberg Foundation
Note

QC 20171124

Available from: 2017-11-24 Created: 2017-11-24 Last updated: 2017-11-24Bibliographically approved
Ihrner, N., Johannisson, W., Sieland, F., Zenkert, D. & Johansson, M. (2017). Structural lithium ion battery electrolytes via reaction induced phase-separation. Journal of Materials Chemistry A, 5(48), 25652-25659.
Open this publication in new window or tab >>Structural lithium ion battery electrolytes via reaction induced phase-separation
Show others...
2017 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488, Vol. 5, no 48, 25652-25659 p.Article in journal (Refereed) Published
Abstract [en]

For the realization of structural batteries, electrolytes where both higher ionic conductivity and stiffness are combined need to be developed. The present study describes the formation of a structural battery electrolyte (SBE) as a two phase system using reaction induced phase separation. A liquid electrolyte phase is combined with a stiff vinyl ester based thermoset matrix to form a SBE. The effect of monomer structure variations on the formed morphology and electrochemical and mechanical performance has been investigated. An ionic conductivity of 1.5 x 10(-4) S cm(-1), with a corresponding storage modulus (E') of 750 MPa, has been obtained under ambient conditions. The SBEs have been combined with carbon fibers to form a composite lamina and evaluated as a battery half-cell. Studies on the lamina revealed that both mechanical load transfer and ion transport are allowed between the carbon fibers and the electrolyte. These results pave the way for the preparation of structural batteries using carbon fibers as electrodes.

Place, publisher, year, edition, pages
Elsevier, 2017
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-220591 (URN)10.1039/c7ta04684g (DOI)000417953100058 ()2-s2.0-85038213596 (Scopus ID)
Note

QC 20180117

Available from: 2018-01-17 Created: 2018-01-17 Last updated: 2018-01-17Bibliographically approved
Torron, S., Hult, D., Pettersson, T. & Johansson, M. (2017). Tailoring Soft Polymer Networks Based on Sugars and Fatty Acids toward Pressure Sensitive Adhesive Applications. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 5(3), 2632-2638.
Open this publication in new window or tab >>Tailoring Soft Polymer Networks Based on Sugars and Fatty Acids toward Pressure Sensitive Adhesive Applications
2017 (English)In: ACS SUSTAINABLE CHEMISTRY & ENGINEERING, ISSN 2168-0485, Vol. 5, no 3, 2632-2638 p.Article in journal (Refereed) Published
Abstract [en]

The present work describes the synthesis and characterization of fully biobased soft polymer networks for pressure sensitive adhesives applications. The incorporation of different sugars into fatty-acid-based monomers, made it possible to tailor the viscoelastic properties of the materials. Lipase catalysis allowed to afford monomers with varying hydroxyl content and epoxy-functionalities. Step-growth polymerization catalyzed by DBU resulted in soft-polyester networks through combination of the monomers with a biobased diacid. Rheological and adhesion studies were performed to elucidate the different viscoelastic and adhesive properties of the materials as a function of their composition.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2017
Keyword
Pressure sensitive adhesives, Soft polymer networks, Lipase catalysis, Fatty acids, Biobased, Vegetable oils, Sorbitol
National Category
Polymer Chemistry Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-205478 (URN)10.1021/acssuschemeng.6b02978 (DOI)000395846900067 ()2-s2.0-85014509029 (Scopus ID)
Note

QC 20170510

Available from: 2017-05-10 Created: 2017-05-10 Last updated: 2017-11-10Bibliographically approved
Huang, H., Dobryden, I., Ihrner, N., Johansson, M., Ma, H., Pan, J. & Claesson, P. M. (2017). Temperature-dependent surface nanomechanical properties of a thermoplastic nanocomposite. Journal of Colloid and Interface Science, 494, 204-214.
Open this publication in new window or tab >>Temperature-dependent surface nanomechanical properties of a thermoplastic nanocomposite
Show others...
2017 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 494, 204-214 p.Article in journal (Refereed) Published
Abstract [en]

In polymer nanocomposites, particle-polymer interactions influence the properties of the matrix polymer next to the particle surface, providing different physicochemical properties than in the bulk matrix. This region is often referred to as the interphase, but detailed characterization of its properties remains a challenge. Here we employ two atomic force microscopy (AFM) force methods, differing by a factor of about 15 in probing rate, to directly measure the surface nanomechanical properties of the transition region between filler particle and matrix over a controlled temperature range. The nanocomposite consists of poly(ethyl methacrylate) (PEMA) and poly(isobutyl methacrylate) (PiBMA) with a high concentration of hydrophobized silica nanoparticles. Both AFM methods demonstrate that the interphase region around a 40-nm-sized particle located on the surface of the nanocomposite could extend to 55–70 nm, and the interphase exhibits a gradient distribution in surface nanomechanical properties. However, the slower probing rate provides somewhat lower numerical values for the surface stiffness. The analysis of the local glass transition temperature (Tg) of the interphase and the polymer matrix provides evidence for reduced stiffness of the polymer matrix at high particle concentration, a feature that we attribute to selective adsorption. These findings provide new insight into understanding the microstructure and mechanical properties of nanocomposites, which is of importance for designing nanomaterials.

Place, publisher, year, edition, pages
Academic Press, 2017
Keyword
Atomic force microscopy, Interphase, Nanomechanical properties, Thermoplastic nanocomposite
National Category
Materials Chemistry
Identifiers
urn:nbn:se:kth:diva-203220 (URN)10.1016/j.jcis.2017.01.096 (DOI)000395496900025 ()2-s2.0-85011072447 (Scopus ID)
Note

QC 20170317

Available from: 2017-03-14 Created: 2017-03-14 Last updated: 2017-04-25Bibliographically approved
Jawerth, M., Lawoko, M., Lundmark, S., Pérez-Berumen, C. M. & Johansson, M. K. (2016). Allylation of a lignin model phenol: a highly selective reaction under benign conditions towards a new thermoset resin platform. RSC Advances, 6(98), 96281-96288.
Open this publication in new window or tab >>Allylation of a lignin model phenol: a highly selective reaction under benign conditions towards a new thermoset resin platform
Show others...
2016 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 6, no 98, 96281-96288 p.Article in journal (Refereed) Published
Abstract [en]

The lack of aromatic material constituents derived from renewable resources poses a problem to meet the future demands of a more sustainable society. Lignin is the most abundant source of aromatic structures found in nature and is a highly interesting source for material applications. Development of controlled chemical modification routes of lignin structures are crucial in order to further develop this area. In this study allyl chloride is used to selectively modify a lignin phenol in the presence of other lignin functionalities, i.e. aliphatic hydroxyls and conjugated alkenes, under mild reaction conditions in quantitative yields. For this, coniferyl alcohol was used as a model compound in the present study. The modification was carried out in ethanol as the synthesis media. Studies on the effect of reaction time and temperature revealed optimum conditions allowing for a quantitative yield without any detectable levels of byproducts as studied with NMR, FT-IR and FT-Raman. The thermal stability of the formed product was determined to be up to at least 160 degrees C through DSC measurements. In addition, as a proof of concept, the use of the allylated monomer to form crosslinked films using free radical thiol-ene polymerization was demonstrated.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016
National Category
Polymer Chemistry
Identifiers
urn:nbn:se:kth:diva-199018 (URN)10.1039/c6ra21447a (DOI)000385633100109 ()2-s2.0-84991578448 (Scopus ID)
Funder
Knut and Alice Wallenberg Foundation
Note

QC 20170119

Available from: 2017-01-19 Created: 2016-12-22 Last updated: 2017-11-29Bibliographically approved
Torron, S., Semlitsch, S., Martinelle, M. & Johansson, M. (2016). Biocatalytic Synthesis of Epoxy Resins from Fatty Acids as a Versatile Route for the Formation of Polymer Thermosets with Tunable Properties. Biomacromolecules, 17(12), 4003-4010.
Open this publication in new window or tab >>Biocatalytic Synthesis of Epoxy Resins from Fatty Acids as a Versatile Route for the Formation of Polymer Thermosets with Tunable Properties
2016 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 17, no 12, 4003-4010 p.Article in journal (Refereed) Published
Abstract [en]

The work herein presented describes the synthesis and polymerization of series of bio-based epoxy resins prepared through lipase catalyzed transesterification. The epoxy-functional polyester resins with various architectures (linear, hi branched, and tetra-branched) were synthesized through condensation of fatty acids derived from epoxidized soybean oil and linseed oil with three different hydroxyl cores under bulk conditions. The selectivity of the lipases toward esterification/transesterification reactions allowed the formation of macromers with up to 12 epoxides in the backbone. The high degree of functionality of the resins resulted in polymer thermosets with T-g values ranging from 25 to over 100 degrees C prepared through cationic polymerization. The determining parameters of the synthesis and the mechanism for the formation of the species were determined through kinetic studies by H-1 NMR, SEC, and molecular modeling studies. The correlation between macromer structure and thermoset properties was studied through real-time FTIR measurements, DSC, and DMA.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2016
National Category
Biochemistry and Molecular Biology Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-199493 (URN)10.1021/acs.biomac.6b01383 (DOI)000389787200017 ()2-s2.0-85006106040 (Scopus ID)
Note

QC 20170118

Available from: 2017-01-18 Created: 2017-01-09 Last updated: 2017-11-29Bibliographically approved
Semlitsch, S., Torron, S., Johansson, M. & Martinelle, M. (2016). Enzymatic catalysis as a versatile tool for the synthesis of multifunctional, bio-based oligoester resins. Green Chemistry, 18(7), 1923-1929.
Open this publication in new window or tab >>Enzymatic catalysis as a versatile tool for the synthesis of multifunctional, bio-based oligoester resins
2016 (English)In: Green Chemistry, ISSN 1463-9262, E-ISSN 1463-9270, Vol. 18, no 7, 1923-1929 p.Article in journal (Refereed) Published
Abstract [en]

The use of enzymes as selective catalysts for processing renewable monomers into added value polymers and materials has received increased attention during the last decade. In the present work Candida antarctica lipase B (CalB) was used as catalyst in one-pot routes to synthesise multifunctional oligoester resins based on an epoxy-functional omega-hydroxy-fatty acid (EFA) extracted from birch bark. The chemoselective enzymatic process resulted in three different EFA-based telechelic oligomers with targeted molecular weights; containing maleimide, methacrylate or oxetane as end-groups, respectively. The enzyme catalysed synthesis of the maleimide and the oxetane telechelic oligomers reached full conversion of monomers (>95%) after 2 h. In the case of methacrylate functional oligomer the EFA monomer reached full conversion (>98%) after 2 h but the integration of the methacrylate moiety took more than 10 h. This was due to a rate limiting reaction path using ethylene glycol dimethacrylate as substrate. The oligomer products were characterised by NMR, MALDI-TOF-MS and SEC.

Place, publisher, year, edition, pages
The Royal Society of Chemistry, 2016
National Category
Polymer Chemistry
Identifiers
urn:nbn:se:kth:diva-185665 (URN)10.1039/c5gc02597d (DOI)000372981400012 ()2-s2.0-84962377189 (Scopus ID)
Funder
EU, FP7, Seventh Framework Programme
Note

QC 20160426

Available from: 2016-04-26 Created: 2016-04-25 Last updated: 2017-11-30Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-3201-5138

Search in DiVA

Show all publications