Porous amphiphilic biogel from facile chemo-biosynthetic route

Syed Mohammad Daniel Syed Mohamed, M. Suffian M. Annuar, Thorsten Heidelberg, Nor Faezah Ansari, Nor Hidayah Ismail

Abstract


Grafting of medium-chain-length poly-3-hydroxyalkanoates (mcl-PHA) with glycerol 1,3-diglycerolate diacrylate (GDD) in acetone was per­formed using benzoyl peroxide as the initiator. A detailed mechanism scheme provides significant improvement to previous literature. Radical-mediated grafting generated ab carbon inter-linking of mcl-PHA and GDD, resulting in a macromolecular structure with gel properties. The thermal properties of the copolymer for different graft yields were investigated as a function of initiator concentration, GDD monomer concentration, incubation period and tempera­ture. The water absorption and porosity of the gel were significantly improved relative to neat mcl-PHA.


Keywords


biogel; chemo-biosynthetic; biopolymer; radical grafting

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DOI: https://doi.org/10.2298/JSC190625101S

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