Study of an aramid surface reactivity: Modification with a cold plasma or an electron beam followed by a postgrafting reaction
Study of an aramid surface reactivity: Modification with a cold plasma or an electron beam followed by a postgrafting reaction
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DOI：
10.1002/app.1994.070520806
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发表时间：
1994-05
影响因子：
3
通讯作者：
F. Poncin-Epaillard;B. Chevet;J. Brosse
中科院分区：
文献类型：
--
作者：
F. Poncin-Epaillard;B. Chevet;J. Brosse
介绍了丙烯酸在聚对苯对苯二甲酸（PPTA）上接枝反应的不同活化模式。两者都导致表面自由基的形成，并且这些物种能够引发接枝。通过氨基连接的功能化是等离子体处理的特征。注意到由紫外可见等离子体发射引起的降解，导致酰胺的破坏。当PPTA用冷等离子体辐照和水作为溶剂时，表面接枝更为重要。聚合物结晶度降低了电子束辐照PPTA的接枝反应，即使自由基浓度较高。©1994 John Wiley & Sons, Inc
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.