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Synthesis, properties, and permeation of solutes through hydrogels based on poly(ethylene glycol)‐ co ‐poly(lactones) diacrylate macromers and chitosan
Author(s) -
Cho Sung Min,
Kim So Yeon,
Lee Young Moo,
Sung Young Kiel,
Cho Chong Su
Publication year - 1999
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/(sici)1097-4628(19990912)73:11<2151::aid-app11>3.0.co;2-0
Subject(s) - self healing hydrogels , crystallinity , ethylene glycol , polymer chemistry , materials science , chitosan , chemical engineering , fourier transform infrared spectroscopy , permeation , polymer , macromonomer , copolymer , swelling , gel permeation chromatography , peg ratio , chemistry , composite material , membrane , biochemistry , engineering , finance , economics
Triblock copolymers from poly(ethylene glycol) (PEG) and D,L ‐lactide or ε‐caprolactone were synthesized to prepare semi‐interpenetrating polymer networks (semi‐IPNs) with chitosan by ultraviolet (UV) irradiation method. Then, the solute permeation through these semi‐IPNs hydrogels were investigated. The structures of semi‐IPNs were confirmed by Fourier transform infrared (FTIR) spectroscopy and wide‐angle X‐ray diffractometer (WAXD). The equilibrium water content (EWC) of these hydrogels was in the range of 67–75%. The crystallinity, thermal properties, and mechanical properties of semi‐IPNs hydrogels were studied. All the hydrogels revealed a remarkable decrease in crystallinity as compared with the PEG macromer itself. The tensile strengths of semi‐IPNs hydrogels in a dry state were rather high, but those of hydrogels in a wet state decreased drastically. The permeabilities of solutes of hydrogels followed the swelling behaviors and were regulated by solute size. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 2151–2158, 1999