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Preparation and evaluation of a block copolymer compatibilizer for biocomposite applications
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Fibre Technology. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation.ORCID iD: 0000-0002-5444-7276
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Coating Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.
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2012 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this study, the concept of using a free polymer as a compatibilzer in biocomposite applications has been evaluated with focus on the polymer poly(ɛ-caprolactone) (PCL), commonly used in conventional grafting onto/from cellulose. A block copolymer consisting of PCL and a shorter segment of poly(di(methylamino)ethyl methacrylate) (PDMAEMA) was made combining ring-opening polymerization (ROP) and atom transfer radical polymerization (ATRP). The length of the PDMAEMA-part was kept constant, and the PCL-part was varied in three different lengths, yielding three separate block copolymers. As a final step, the PDMAEMA-part was quaternized, which resulted in cationically charged chains –polyelectrolytes. The charged part could then be used as an electrostatic linker allowing the PDMAEMA-PCL copolymer to be adsorbed onto negatively charged cellulose model surfaces. Finally, these cellulose model surfaces were evaluated regarding for example amount of polymer adsorbed and hydrophobic character, investigated with techniques such as quartz crystal microbalance (QCM) and contact angle measurements.

Place, publisher, year, edition, pages
2012.
National Category
Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-103885OAI: oai:DiVA.org:kth-103885DiVA: diva2:562169
Conference
2nd Avancell conference, Chalmers University of Technology, Göteborg 2-3 October, 2012
Note

20121217

Available from: 2012-10-23 Created: 2012-10-23 Last updated: 2012-12-17Bibliographically approved

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Pettersson, TorbjörnCarlmark, AnnaFogelström, LindaWågberg, LarsMalmström, Eva

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Coating TechnologyVinnExcellence Center BiMaC InnovationFibre TechnologyWallenberg Wood Science Center
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