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Synthesis of novel block copolymers containing polyamide4 segments and control of their biodegradability
Author(s) -
Hashimoto Kazuhiko,
Sudo Mie,
Sugimura Takayuki,
Inagaki Yoshiki
Publication year - 2004
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.20348
Subject(s) - copolymer , polyamide , polymer chemistry , biodegradation , polymerization , block (permutation group theory) , materials science , macromolecule , degradation (telecommunications) , polymer , lactam , chemistry , chemical engineering , organic chemistry , composite material , engineering , telecommunications , biochemistry , geometry , mathematics , computer science
Different novel copolymers, ABA‐type block copolymers composed of polyamide4 as outer segments and polyoxyethylene as an inner segment and AB‐ and ABA‐type block copolyamides containing polyamide4 and another hydrophilic polyamide derived from a bicyclic lactam, were synthesized by the anionic ring‐opening polymerization of 2‐pyrrolidone using the corresponding acyllactam‐type macromolecular activators. The degradation rate of both block copolymers containing polyamide4 segments in a composted soil was found to decrease with increasing content of the second segments, although they were also hydrophilic and/or biodegradable. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 3492–3498, 2004