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Synthesis and characterization of polycaprolactone (B)–poly(lactide‐co‐glycolide) (A) ABA block copolymer
Author(s) -
Cai Qing,
Bei Jianzhong,
Wang Shenguo
Publication year - 2000
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/1099-1581(200004)11:4<159::aid-pat956>3.0.co;2-n
Subject(s) - copolymer , polycaprolactone , materials science , prepolymer , lactide , gel permeation chromatography , polymer chemistry , differential scanning calorimetry , plga , amorphous solid , chemical engineering , polymer , polyurethane , composite material , organic chemistry , chemistry , nanotechnology , physics , nanoparticle , engineering , thermodynamics
Novel poly(lactide‐co‐glycolide) (PLGA)/polycaprolactone (PCL) ABA block copolymers were synthesized by bulk copolymerization of glycolide and lactide with PCL diols prepolymer using stannous octoate as catalyst. The resulting copolymers were characterized by various analytical techniques including gel permeation chromatography, IR, 1 H nuclear magnetic resonance, differential scanning calorimeter and X‐ray diffractometry. Mechanical properties and hydrophilicity of the copolymers were also studied. Data showed that the copolymers presented a part‐regular structure, containing both PCL crystalline and amorphous PLGA domains. The properties of these copolymers can be adjusted by changing the compositions of the copolymers. Copyright © 2000 John Wiley & Sons, Ltd.