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Synthesis and biodegradability evaluation of 2‐methylene‐1,3‐dioxepane and styrene copolymers
Author(s) -
Xu Jian,
Liu ZhiLan,
Zhuo RenXi
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.25321
Subject(s) - copolymer , gel permeation chromatography , polymer chemistry , fourier transform infrared spectroscopy , styrene , dispersity , polystyrene , biodegradation , materials science , benzoyl peroxide , chemistry , depolymerization , methylene , nuclear chemistry , organic chemistry , polymerization , chemical engineering , polymer , engineering
Biodegradable copolymers of 2‐methylene‐1,3‐dioxepane (MDO) and styrene (ST) were synthesized by free‐radical copolymerization using di‐ t ‐butyl peroxide (DTBP) as the initiator. The copolymers containing ester units were characterized by Fourier transform infrared (FTIR), 1 H‐NMR, and 13 C‐NMR spectroscopy. Their molecular weight and polydispersity index were determined by gel permeation chromatography (GPC). In vitro enzymatic degradation of poly(MDO‐ co ‐ST) was performed at 37°C in phosphate buffer solution (PBS, pH = 7.4) in the presence of Pseudomonas lipase or crude enzyme extracted from earthworm. The experiment showed that incorporating ester units into CC backbone chain of polystyrene would result in a biodegradable copolymer. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 1146–1151, 2007
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