Poly(propylene oxide)-thioxanthone as one-component Type II polymeric photoinitiator for free radical polymerization with low migration behavior

被引：35
|
作者：
Kreutzer, Johannes [1 ]
Kaya, Kerem [1 ]
Yagci, Yusuf [1 ]
机构：
[1] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey
来源：
EUROPEAN POLYMER JOURNAL | 2017年 / 95卷
关键词：
Photopolymerization; Type II photoinitiator; Thioxanthone; Pol(propylene oxide); One-component photoinitiator; Low migration; PROMOTED CATIONIC-POLYMERIZATION; ACYLGERMANE-BASED PHOTOINITIATOR; VISIBLE-LIGHT PHOTOINITIATORS; LASER FLASH-PHOTOLYSIS; DOUBLE CLICK REACTIONS; DENDRITIC MACROPHOTOINITIATOR; THIOXANTHONE PHOTOINITIATOR; PHOTOCLEAVABLE STRUCTURES; CHAIN THIOXANTHONE; COINITIATOR AMINE;
D O I：
10.1016/j.eurpolymj.2017.07.030
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A novel kind of low migration one-component Type II photoinitiators was synthesized by Schiff base reaction of thioxanthone aldehyde and amine functional poly(propylene oxide) (PPO) precursors with two different molecular weights. The final initiators (TX-PPO) were characterized in detail by spectral analysis and DFT theoretical calculations. The molecular weight of the PPO directly effects the solubility of the initiator in monomers. The one-component photo initiating nature of the initiators was demonstrated by photobleaching and photo polymerization of several vinyl monomers in the absence of a hydrogen donor such as triethylamine. Leaching studies on the photocured polymer films show only negligible migration of the photoinitiator.
引用
收藏
页码：71 / 81
页数：11
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