Photoinitiators and photoinitiation .12. The aromatic ketone/t-amine Type-II photoinitiating system. Identification of the initiating species

被引：6

作者：

Hageman, HJ ^{[1
]}

机构：

[1] AKZO NOBEL CENT RES ARNHEM,ARNHEM,NETHERLANDS

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1997年 / 18卷 / 05期

关键词：

D O I：

10.1002/marc.1997.030180512

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The system benzophenone/N, N-dimethylaniline (DMA) representing a typic al Type-II photoinitiating system is irradiated in the presence of 1,1-di(p-tolyl)ethylene (DTE) as a non-polymerising model substrate. In the presence of DMA the excited triplet state of benzophenone is not quenched by DTE and N-[3,3-di(p-tolyl)propyl] -N-methylaniline is isolated as the major product, indicating the DMA derived radical as the main initiating species in such Type-II systems. The mechanism of the reaction and its implications are discussed.

引用

页码：443 / 449

页数：7

共 25 条

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ALLEN NS, 1989, PHOTOPOLYMERISATION, P1

[2] USE OF ACYLPHOSPHINE OXIDES AND ACYLPHOSPHONATES AS PHOTOINITIATORS [J].