Premium
Preparation, characterization, and properties of EVA preirradiation grafted NIPAAm
Author(s) -
Pu Hongting,
Ding Zhongli,
Ma Zueteh
Publication year - 1996
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(19961205)62:10<1529::aid-app5>3.0.co;2-q
Subject(s) - lower critical solution temperature , copolymer , grafting , polymer chemistry , materials science , vinyl acetate , microporous material , layer (electronics) , chemical engineering , composite material , polymer , engineering
An ethyl–vinyl acetate copolymer (EVA) preirradiation‐grafted with N ‐isopropylacrylamide (NIPAAm) was propared. Various methods which can be used to control the grafting reaction are described. DSC and TMA were employed to characterize the surface thermosensitivity of the graft copolymer. It is indicated that the surface of EVA grafted with NIPAAm shows thermosensitivity similar to a partially crosslinked poly‐NIPAAm (PNIPAAm) gel. The response to the change of temperature through the lower critical solution temperature (LCST) of the graft was swifter than that of the PNIPAAm, gel. SEM revealed a micropore structure in the surface layer of the sample. DSC was also used to analyze the water state in the surface layer of the sample. © 1996 John Wiley & Sons, Inc.