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Synthesis of degradable copolymers by ring‐opening polymerization
Author(s) -
Albertsson AnnChristine,
Löfgren Anders,
Sjöling Maria
Publication year - 1993
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19930730113
Subject(s) - copolymer , monomer , polymer chemistry , glass transition , toluene , polymerization , hydrolysis , ring opening polymerization , amorphous solid , chemistry , hydrolytic degradation , polymer , organic chemistry
Hydrolysable copolymers made from different cyclic monomers have been studied. The monomers involved are 1,5‐dioxepan‐2‐one (DXO), L‐dilactide, 1,3‐dioxan‐2‐one (TMC), oxepan‐2,7‐dione (AA) and oxepan‐2‐one (ϵ‐CL). The hydrolysis of the DXO/L‐dilactide copolymer showed great differences in degradation rate depending on composition. A statistical copolymer made from TMC and ϵ‐CL was amorphous with a glass transition temperature of −48°C. TMC and AA could form a blockcopolymer with n‐BuLi as initiator in toluene, 0°C.