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Integration of Lignin and Acrylic Monomers Towards Grafted Copolymers by Free Radical Polymerization

Integration of Lignin and Acrylic Monomers Towards Grafted Copolymers by Free Radical Polymerization

Xiaohuan Liu, Yuzhi Xu, Juan Yu, Shouhai Li, Jifu Wang, Chunpeng Wang, Fuxiang Chu

Int J Biol Macromol. 2014 Jun;67:483-9.

PMID: 24742785

Abstract:

Three kinds of acrylic monomers (2,2,3,4,4,4-hexafluorobutyl methacrylate (HFBMA), methyl methacrylate (MMA) and butyl acrylate (BA)) were utilized to modify the lignin (BBL) by "grafting from" free radical polymerization (FRP), respectively. Calcium chloride/hydrogen peroxide (CaCl2/H2O2) was used as initiator. Effects of monomer type and concentration, initiator concentration and polymerization time on grafting from BBL were studied. Grafting of poly (acrylic monomers) onto BBL was verified by the following characterizations and this synthesis method was found to be high efficient and selective for grafting polymerization of BBL. The presence of the BBL moiety in the backbone also resulted in higher glass transition temperature compared with the homopolymer of each monomer, and some modified copolymers also improved its thermal stability. All modifications made BBL more hydrophobic and the static contact angles of these modified copolymers were above 80°. XPS analysis revealed that the surface of these modified BBL copolymers were dominated by acrylate monomer moiety. Additionally, the BBL-g-PBA copolymers can be used as dispersion modifiers in PLA-based materials to enhance UV absorption.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP54052903	2,2,3,4,4,4-Hexafluorobutyl acrylate		54052-90-3	Price
AP64376869	Poly(2,2,3,4,4,4-hexafluorobutyl methacrylate)		64376-86-9	Price

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