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Core-shell nanoparticle and renewable resource plasticizers for PVC
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Polymer Technology.
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology , 2011. , 43 p.
Series
Trita-CHE-Report, ISSN 1654-1081 ; 2011:39
Keyword [en]
PVC, nanocomposite, nanoparticle, core-shell, pasticizer, renewable resources, isosorbide
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-38550ISBN: 978-91-7501-005-2 (print)OAI: oai:DiVA.org:kth-38550DiVA: diva2:437328
Presentation
2011-06-07, V3, KTH, Teknikringen 76, 2 tr, Stockholm, 10:00 (English)
Opponent
Supervisors
Note
QC 20110829Available from: 2011-08-29 Created: 2011-08-29 Last updated: 2011-08-29Bibliographically approved
List of papers
1. Oligomeric Isosorbide Esters as Alternative Renewable Resource Plasticizers for PVC
Open this publication in new window or tab >>Oligomeric Isosorbide Esters as Alternative Renewable Resource Plasticizers for PVC
2011 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 119, no 4, 2400-2407 p.Article in journal (Refereed) Published
Abstract [en]

Oligo(isosorbide adipate) (OSA), oligo(isosorbide suberate) (OSS), and isosorbide dihexanoate (SDH) were synthesized and evaluated as renewable resource alternatives to traditional phthalate plasticizers. The structure of the synthesized oligomers was confirmed by nuclear magnetic resonance spectroscopy (H-1-and C-13-NMR), and molecular weight was determined by size exclusion chromatograph. The plasticizers were blended with poly(vinyl chloride) (PVC), and the miscibility and properties of the blends were evaluated by differential scanning calorimetry, fourier transform infrared spectroscopy, tensile testing, and thermogravimetry. Especially the blends plasticized with SDH had almost identical properties with PVC/diisooctyl phthalate (DIOP) blends. The blends containing OSA and OSS plasticizers, based on dicarboxylic acids, had somewhat lower strain at break but higher stress at break and better thermal stability compared to the PVC/DIOP or PVC/SDH blends. All the synthesized isosorbide plasticizers showed potential as alternative PVC plasticizers.

Keyword
poly(vinyl chloride), PVC, renewable resources, blends, polyesters, isosorbide
National Category
Polymer Chemistry Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-27080 (URN)10.1002/app.32913 (DOI)000284233500061 ()2-s2.0-78249234395 (Scopus ID)
Note

QC 20101210

Available from: 2010-12-10 Created: 2010-12-06 Last updated: 2017-12-11Bibliographically approved
2. Core-shell nanoparticle-plasticizers for design of high-performance polymeric materials with improved stiffness and toughness
Open this publication in new window or tab >>Core-shell nanoparticle-plasticizers for design of high-performance polymeric materials with improved stiffness and toughness
2011 (English)In: Journal of Materials Chemistry, ISSN 0959-9428, E-ISSN 1364-5501, Vol. 21, no 24, 8670-8677 p.Article in journal (Refereed) Published
Abstract [en]

Core-shell nanoparticle-plasticizers were synthesized and blended with PVC in an attempt to simultaneously improve the toughness and stiffness of the resulting materials. Halloysite, kaolin and silicon dioxide nanofillers, representing acicular, layered and spherical morphologies, were surface-grafted with poly(butylene adipate) (PBA). The surface-grafting was confirmed by FTIR and the amount of PBA grafted on the surface was determined by TGA. In the case of halloysite and silicon dioxide nanoparticles their dispersion and miscibility in the PVC matrix were remarkably improved by the surface-grafting as shown by SEM, tensile testing and DMA. The tensile stress at break for the PVC films containing 5 wt% surface-treated halloysite nanoparticles increased 15%, modulus by 65% and the strain at break was 30 times higher compared to PVC containing 5 wt% untreated halloysite nanoparticles. The PVC films containing 5 wt% surface-treated silicon dioxide nanoparticles exhibited remarkably higher strain at break values compared to plain PVC/silicon dioxide composites, but also somewhat lower stress at break values probably due to the considerably higher amount of PBA grafted on the silicon dioxide surfaces. The higher storage modulus for PVC with surface modified silicon dioxide, however, still indicates higher stiffness for the material containing surface treated nanoparticles. Altogether the results show that the nanoparticle-plasticizer concept could be applied to simultaneously improve the toughness and stiffness of the materials and further improvements could be achieved after optimization of the number of PBA chains and their molecular weight.

Keyword
POLY(VINYL CHLORIDE) NANOCOMPOSITES; MECHANICAL-PROPERTIES; CHAIN ARCHITECTURE; MONTMORILLONITE; BLENDS
National Category
Polymer Chemistry Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-35132 (URN)10.1039/c1jm10624d (DOI)000291352900028 ()2-s2.0-79959277550 (Scopus ID)
Note

QC 20110623

Available from: 2011-06-23 Created: 2011-06-20 Last updated: 2017-12-11Bibliographically approved

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