INITIATION MECHANISM OF PHOTO-INDUCED POLYMERIZATION OF N-4-METHYLPHENYL MALEIMIDE INITIATED BY N, N-DIMETHYL- P-TOLUIDINE

YE Ke-qiang; DONG Jian-hua; QIU Kun-yuan; FENG Xin-de

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INITIATION MECHANISM OF PHOTO-INDUCED POLYMERIZATION OF N-4-METHYLPHENYL MALEIMIDE INITIATED BY N, N-DIMETHYL- P-TOLUIDINE

Research Bulletin | 更新时间：2021-03-19

- INITIATION MECHANISM OF PHOTO-INDUCED POLYMERIZATION OF N-4-METHYLPHENYL MALEIMIDE INITIATED BY N, N-DIMETHYL- P-TOLUIDINE
- Acta Polymerica Sinica Issue 2, Pages: 253-256(1994)
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- Published：20 April 1994，
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YE Ke-qiang, DONG Jian-hua, QIU Kun-yuan, FENG Xin-de. INITIATION MECHANISM OF PHOTO-INDUCED POLYMERIZATION OF N-4-METHYLPHENYL MALEIMIDE INITIATED BY N, N-DIMETHYL- P-TOLUIDINE. [J]. Acta Polymerica Sinica (2):253-256(1994)
DOI：

YE Ke-qiang, DONG Jian-hua, QIU Kun-yuan, FENG Xin-de. INITIATION MECHANISM OF PHOTO-INDUCED POLYMERIZATION OF N-4-METHYLPHENYL MALEIMIDE INITIATED BY N, N-DIMETHYL- P-TOLUIDINE. [J]. Acta Polymerica Sinica (2):253-256(1994) DOI：

摘要

Abstract

The initiation mechanism of photopolymerization has been studied by means of UV spectroscopy

fluorescence spectroscopy and end group analysis methods.UV spectroscopy measurements revealed the formation of charge transfer complexes (CTC ) between N - 4- methylphenyl maleimide (PMPMI ) and N

N - dimethyl - p - toluidine (DMT ). The equilibrium constant of the CTC determined from Benest - Hildebrand equation was 0.056. The fluorescence spedroscopy experimental results identified the formation of exciplex of PMPMI nad DMT. The UV measurements of polymer confirmed the presence of DMT moieties as end groups in resulting polymers. Based on the experimental results

it is proposed that the initiation mechanism of photopolymerization of PMPMI initiated by DMT was via eciplex either by the excitation of CTC formed in the ground state or through the local excitation pathway.

关键词

光引发聚合机理电荷转移复合物激基复合物荧光淬灭NN－二甲基对甲苯胺N－对甲苯基马来酰亚胺

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