Citation: WANG Erjian, LI Miaozhen, CHANG Zhiying, FENG Xinde. STUDY OF PHOTOSENSITIZED INITIATION SYSTEMS CONTAINING OXYGEN Ⅴ. THE EFFECT OF MERCAPTAN ADDITIVES[J]. Chinese Journal of Polymer Science, ;1986, 4(3): 214-219. shu

STUDY OF PHOTOSENSITIZED INITIATION SYSTEMS CONTAINING OXYGEN Ⅴ. THE EFFECT OF MERCAPTAN ADDITIVES

Received Date: 9 October 1984

A kinetic study on the photopolymerization of methyl methacrylate (MMA) with benzophenone(BP)/triethylamine (TEA)/mercaptan systems as initiator has been carried out in the presence of oxygen.It was found that both aliphatic and aromatic thiols promote the photooxidation process, leadingto obvious decrease in induction period of photopolymerization. The rate-aereleration of aromaticthiols is more effective than that of aliphatic ones, such as p-toluene thiol used as additive increasesthe relative quantum yieldφO2/φN2 to 1.8.
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