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Surface chlorination of polypropylene film by CHCI 3 plasma
Author(s) -
Inagaki N.,
Tasaka S.,
Suzuki Y.
Publication year - 1994
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/app.1994.070511304
Subject(s) - polypropylene , x ray photoelectron spectroscopy , contact angle , plasma , materials science , polymer chemistry , irradiation , chemical engineering , chemistry , composite material , physics , quantum mechanics , nuclear physics , engineering
Polypropylene films were treated with the CHCI 3 plasma, and their chemical composition was analyzed with XPS and ART IR spectroscopy. The CHCI 3 plasma irradiation made polypropylene films hydrophilic. The advancing contact angle decreases from 95° for the untreated to about 73° for the CHCI 3 plasma‐treated films. In the CHCI 3 plasma irradiation, the chlorination occurs, and CCl, CCl 2 , and CCl 3 units are formed in the polypropylene films. Simultaneously with the chlorination, unsaturated units (CC and conjugated CC units) are formed from dehydrogen chlorination of the chlorinated products, but the oxygen incorporation into the films is low. The CHCI 3 plasma is preferred in chlorination of polypropylene films to the CCl 4 plasma. © 1994 John Wiley & Sons, Inc.