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Issue 10, 2010
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UV-induced crosslinking of the biopolyester poly(3-hydroxybutyrate)-co-(3-hydroxyvalerate)

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Abstract

Films of the biopolyester poly(3-hydroxybutyrate)-co-(3-hydroxyvalerate) PHB-HV, a microbe-derived poly(hydroxyalkanoate), were crosslinked with 2,6-bis(4-azidobenzylidene)-4-methylcyclohexanone BA under UV irradiation. The degree of network formation reached 90% within irradiation times lower than 1 min. The 3 wt% concentration of BA in PHB-HV was found to be the optimum with respect to the rate of crosslinking relative to the rate of chain scission, which were derived from Charlesby-Pinner analyses. The PHB-HV/BA system could successfully be used for the generation of one- and two-step photolithographic imprints with reasonable resolution in the 50 μm range and, hence, proved to be an efficient system for finishing with biopolyesters.

Graphical abstract: UV-induced crosslinking of the biopolyester poly(3-hydroxybutyrate)-co-(3-hydroxyvalerate)

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Publication details

The article was received on 30 Apr 2010, accepted on 02 Jul 2010 and first published on 16 Sep 2010


Article type: Paper
DOI: 10.1039/C0GC00066C
Citation: Green Chem., 2010,12, 1796-1802

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    UV-induced crosslinking of the biopolyester poly(3-hydroxybutyrate)-co-(3-hydroxyvalerate)

    B. Rupp, C. Ebner, E. Rossegger, C. Slugovc, F. Stelzer and F. Wiesbrock, Green Chem., 2010, 12, 1796
    DOI: 10.1039/C0GC00066C

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