ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
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.
Additional Material:
11 Ill.
Type of Medium:
Electronic Resource
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