Versatility of Pyrylium Salt/Vinyl Ether Initiating System for Epoxide Dual-Cure Polymerization: Kick-Starting Effect of the Coinitiator

被引：24

作者：

Lecompere, Maxime ^{[1
]}

Allonas, Xavier ^{[1
]}

Marechal, David ^{[2
]}

Criqui, Adrien ^{[2
]}

机构：

[1] Univ Haute Alsace, Lab Macromol Photochem & Engn, 3b Rue Alfred Werner, F-68093 Mulhouse, France

[2] Mader Res, 130 Rue Mer Rouge, F-68200 Mulhouse, France

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2017年 / 38卷 / 13期

关键词：

cationic polymerization; dual-cure; epoxides; kick-starting; pyrylium salt; PHOTOINITIATED CATIONIC-POLYMERIZATION; FRONTAL POLYMERIZATION; SALTS; MONOMERS; ELECTRON; PHOTOPOLYMERIZATIONS; OXETANES; ION;

D O I：

10.1002/marc.201600660

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Pyrylium salts combined with vinyl ethers are shown to act as new versatile dual-cure initiating systems for both photochemical and thermal initiation of oxirane monomers. The combination of both possibilities allows the curing of thick samples through photoinduced frontal polymerization. On the basis of quantum calculations and photochemical experiments, some clues are given about the reaction mechanisms involved. Interestingly, a sequential kick-starting effect is observed in the presence of vinyl ether enabling the curing of oxetane monomers. Thereby, this communication presents a short overview of potential of pyrylium salts in cationic polymerization of oxiranes.

引用

页数：6

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