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Study of an aramid surface reactivity: Modification with a cold plasma or an electron beam followed by a postgrafting reaction
Author(s) -
PoncinEpaillard Favienne,
Chevet Bruno,
Brosse JeanClaude
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.1994.070520806
Subject(s) - crystallinity , grafting , surface modification , polymer chemistry , materials science , irradiation , acrylic acid , reactivity (psychology) , aramid , polymer , electron beam processing , chemistry , composite material , monomer , fiber , medicine , physics , alternative medicine , pathology , nuclear physics
Different modes of activation are described for a postgrafting reaction of acrylic acid on poly( p ‐phenylene terephthalamid) (PPTA)mitrogen plasma or electron‐beam irradiation. Both lead to surface radical formation, and these species are able to initiate grafting. The Functionalization through amino group attachment is characteristic of plasma treatment. Degradation initiated by UV‐visible emission of plasma is noticed, leading to the amide clivage. The surface grafting is more important when the PPTA is irradiated with a cold plasma and if water is used as the solvent. The polymer crystallinity degree reduces the grafting of the electron beam‐irradiated PPTA even with a high radical concentration. © 1994 John Wiley & Sons, Inc.