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Enzymatic biodegradation of chemosynthetic atactic P(3HB) enhanced by an amorphous non‐biodegradable polymer: blend of atactic P(3HB) with PMMA
Author(s) -
He Yong,
Shuai Xintao,
Cao Amin,
Kasuya Kenichi,
Doi Yoshiharu,
Inoue Yoshio
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20001201)21:18<1277::aid-marc1277>3.0.co;2-5
Subject(s) - biodegradation , materials science , polymer , amorphous solid , biodegradable polymer , methyl methacrylate , chemical engineering , polymer chemistry , phase (matter) , poly 3 hydroxybutyrate , degradation (telecommunications) , polymer blend , organic chemistry , chemistry , polymerization , composite material , copolymer , telecommunications , computer science , engineering
Communication: The phase structure and biodegradability were investigated for a blend of chemosynthetic atactic poly(( R,S )‐3‐hydroxybutyrate), a‐P(3HB), and poly(methyl methacrylate), PMMA. The thermal analysis indicated that amorphous a‐P(3HB)/PMMA blends with 20 wt.‐% and 40 wt.‐% PMMA shows sophisticated phase behavior and is partially miscible. The depolymerase of natural poly(( R )‐3‐hydroxybutyrate) purified from Alcaligenes faecalis T1 did not degrade chemosynthesized a‐P(3HB) at all in the pure state, but it degraded a‐P(3HB) in some a‐P(3HB)/PMMA blends. The results suggested that enzymatic degradation of a‐P(3HB) can be enhanced by an amorphous non‐biodegradable polymer.