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Poly(2‐hydroxyethyl methacrylate) (PHEMA)/poly(styrene‐co‐acrylamide) (PSAm) blends: miscibility and hydrogel properties
Author(s) -
Zhu K. J.,
Wang Liqun,
Yang Shilin
Publication year - 1995
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1995.210360309
Subject(s) - miscibility , materials science , methacrylate , acrylamide , styrene , polymer chemistry , polymer blend , phase (matter) , permeability (electromagnetism) , chemical engineering , polymer , composite material , copolymer , organic chemistry , chemistry , membrane , biochemistry , engineering
The blend miscibility of poly(2‐hydroxyethyl methacrylate) (PHEMA) and poly(styrene‐co‐acrylamide) (PSAm) was studied by DSC. A ‘miscible window’ was found in the range 47–57 mol% of acrylamide in blending PSAm with PHEMA (1:1 w/w) and was analysed by the mean‐field theory. The water content and permeability coefficients of proteins were measured. The results show that the water content of the blends depends on the composition of PSAm and the blends, and the behaviour of blends swollen in water in Fickian type. However, the permeability of the solutes not only related to water content, but was also affected by phase behaviour. Controlled release of somatotropin from a cylindrical device coated with PHEMA/PSAm was achieved.