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Pendergraph, Samuel A.
Publications (9 of 9) Show all publications
Träger, A., Klein, G., Carrick, C., Pettersson, T., Johansson, M., Wågberg, L., . . . Carlmark, A. (2019). Macroscopic cellulose probes for the measurement of polymer grafted surfaces. Cellulose (London), 26(3), 1467-1477
Open this publication in new window or tab >>Macroscopic cellulose probes for the measurement of polymer grafted surfaces
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2019 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 26, no 3, p. 1467-1477Article in journal (Refereed) Published
Abstract [en]

A synthesis protocol was identified to produce covalent grafting of poly(dimethyl siloxane) from cellulose, based on prior studies of analogous ring opening polymerizations. Following this polymer modification of cellulose, the contact adhesion was anticipated to be modified and varied as a function of the polymer molecular mass. The synthetic details were optimized for a filter paper surface before grafting the polymer from bulk cellulose spheres. The adhesion of the unmodified and grafted, bulk cellulose spheres were evaluated using the Johnson-Kendall-Roberts (JKR) theory with a custom build contact adhesion testing setup. We report the first example of grafting poly(dimethyl siloxane) directly from bulk cellulose using ring opening polymerization. For short grafting lengths, both the JKR work of adhesion and the adhesion energy at the critical energy release rate (G(c)) were comparable to unmodified cellulose beads. When polymer grafting lengths were extended sufficiently where chain entanglements occur, both the JKR work of adhesion and G(c) were increased by as much as 190%. Given the multitude of options available to graft polymers from cellulose, this study shows the potential to use this type of cellulose spheres to study the interaction between different polymer surfaces in a controlled manner. [GRAPHICS] .

Place, publisher, year, edition, pages
SPRINGER, 2019
Keywords
Grafted polymer, Cellulose, Contact mechanics, Adhesion, Johnson-Kendall-Roberts theory
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-247840 (URN)10.1007/s10570-018-2196-2 (DOI)000460617900004 ()
Note

QC 20190326

Available from: 2019-03-26 Created: 2019-03-26 Last updated: 2019-10-29Bibliographically approved
Fogelström, L., Norström, E., Holmqvist, J., Pendergraph, S. A., Brucher, J. & Malmström, E. (2017). Wood-derived hemicelluloses as green binders in wood adhesives. Paper presented at 253rd National Meeting of the American-Chemical-Society (ACS) on Advanced Materials, Technologies, Systems, and Processes, APR 02-06, 2017, San Francisco, CA. Abstracts of Papers of the American Chemical Society, 253
Open this publication in new window or tab >>Wood-derived hemicelluloses as green binders in wood adhesives
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2017 (English)In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 253Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
American Chemical Society (ACS), 2017
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-243602 (URN)000430568503334 ()
Conference
253rd National Meeting of the American-Chemical-Society (ACS) on Advanced Materials, Technologies, Systems, and Processes, APR 02-06, 2017, San Francisco, CA
Note

QC 20190206

Available from: 2019-02-06 Created: 2019-02-06 Last updated: 2019-08-20Bibliographically approved
Karlsson, P., Pendergraph, S. A., Larsson, T. & Wågberg, L. (2016). Cellulose model probes for fundamental research on adhesion, swelling and adsorption. Abstracts of Papers of the American Chemical Society, 251
Open this publication in new window or tab >>Cellulose model probes for fundamental research on adhesion, swelling and adsorption
2016 (English)In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 251Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
AMER CHEMICAL SOC, 2016
National Category
Organic Chemistry
Identifiers
urn:nbn:se:kth:diva-242689 (URN)000431903802452 ()
Note

QC 20190221

Available from: 2019-02-21 Created: 2019-02-21 Last updated: 2019-08-21Bibliographically approved
Traeger, A., Pendergraph, S. A., Pettersson, T., Carlmark, A. & Wågberg, L. (2016). Strong and tunable wet adhesion with rationally designed layer-by-layer assembled triblock copolymer films. Abstracts of Papers of the American Chemical Society, 251
Open this publication in new window or tab >>Strong and tunable wet adhesion with rationally designed layer-by-layer assembled triblock copolymer films
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2016 (English)In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 251Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
AMER CHEMICAL SOC, 2016
National Category
Organic Chemistry
Identifiers
urn:nbn:se:kth:diva-242703 (URN)000431903805673 ()
Note

QC 20190220

Available from: 2019-02-20 Created: 2019-02-20 Last updated: 2019-08-21Bibliographically approved
Träger, A., Pendergraph, S. A., Pettersson, T., Halthur, T., Nylander, T., Carlmark, A. & Wågberg, L. (2016). Strong and tuneable wet adhesion with rationally designed layer-by-layer assembled triblock copolymer films. Nanoscale, 8(42), 18204-18211
Open this publication in new window or tab >>Strong and tuneable wet adhesion with rationally designed layer-by-layer assembled triblock copolymer films
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2016 (English)In: Nanoscale, ISSN 2040-3364, E-ISSN 2040-3372, Vol. 8, no 42, p. 18204-18211Article in journal (Refereed) Published
Abstract [en]

this study the wet adhesion between Layer-by-Layer (LbL) assembled films of triblock copolymer micelles was investigated. Through the LbL assembly of triblock copolymer micelles with hydrophobic, low glass transition temperature (T-g) middle blocks and ionic outer blocks, a network of energy dissipating polymer chains with electrostatic interactions serving as crosslinks can be built. Four triblock copolymers were synthesized through Atom Transfer Radical Polymerisation (ATRP). One pair had a poly(2-ethyl-hexyl methacrylate) middle block with cationic or anionic outer blocks. The other pair contained the same ionic outer blocks but poly(n-butyl methacrylate) as the middle block. The wet adhesion was evaluated with colloidal probe AFM. To our knowledge, wet adhesion of the magnitude measured in this study has not previously been measured on any polymer system with this technique. We are convinced that this type of block copolymer system grants the ability to control the geometry and adhesive strength in a number of nano-and macroscale applications.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016
National Category
Chemical Sciences Nano Technology
Identifiers
urn:nbn:se:kth:diva-199546 (URN)10.1039/c6nr05659h (DOI)000387427400024 ()27752695 (PubMedID)2-s2.0-84994128648 (Scopus ID)
Note

QC 20170116

Available from: 2017-01-16 Created: 2017-01-09 Last updated: 2019-10-29Bibliographically approved
Träger, A., Pendergraph, S. A., Carlmark, A. & Wågberg, L. (2015). New concepts for molecular engineering of macroscopic adhesion between cellulose surfaces. Abstract of Papers of the American Chemical Society, 249
Open this publication in new window or tab >>New concepts for molecular engineering of macroscopic adhesion between cellulose surfaces
2015 (English)In: Abstract of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 249Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
AMER CHEMICAL SOC, 2015
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-243699 (URN)000411183302231 ()
Note

QC 20190227

Available from: 2019-02-27 Created: 2019-02-27 Last updated: 2019-02-27Bibliographically approved
Pettersson, T., Pendergraph, S. A., Utsel, S., Marais, A., Gustafsson, E. & Wågberg, L. (2015). Robust and tailored wet adhesion in biopolymer thin film with wet adhesion and toughness superior to wet adhesion in bone. Abstracts of Papers of the American Chemical Society, 249
Open this publication in new window or tab >>Robust and tailored wet adhesion in biopolymer thin film with wet adhesion and toughness superior to wet adhesion in bone
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2015 (English)In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 249Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
AMER CHEMICAL SOC, 2015
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-243698 (URN)000411183303677 ()
Note

QC 20190227

Available from: 2019-02-27 Created: 2019-02-27 Last updated: 2019-08-21Bibliographically approved
Pendergraph, S. A., Klein, G., Johansson, M. & Carlmark, A. (2015). Surface-initiated ring opening polymerization of carbonates and siloxanes from cellulose surfaces. Abstracts of Papers of the American Chemical Society, 249
Open this publication in new window or tab >>Surface-initiated ring opening polymerization of carbonates and siloxanes from cellulose surfaces
2015 (English)In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 249Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
AMER CHEMICAL SOC, 2015
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-243697 (URN)000411186504675 ()
Note

QC 20190227

Available from: 2019-02-27 Created: 2019-02-27 Last updated: 2019-08-21Bibliographically approved
Träger, A., Reid, M. S., Pendergraph, S. A., Cobo Sanchez, C., Malmström, E. & Wågberg, L.Enhanced toolbox to tailor theproperties of Layer‐by‐Layer assembled triblock copolymer films.
Open this publication in new window or tab >>Enhanced toolbox to tailor theproperties of Layer‐by‐Layer assembled triblock copolymer films
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(English)Manuscript (preprint) (Other academic)
National Category
Polymer Chemistry
Identifiers
urn:nbn:se:kth:diva-263103 (URN)
Note

QC 20191104

Available from: 2019-10-29 Created: 2019-10-29 Last updated: 2019-11-04Bibliographically approved
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