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Citation: YUAN Hui-Ya, HUANG Liang, ZENG Zhao-Hua, YANG Jian-Wen, CHEN Yong-Lie. Allyl ether Modified UV Curable Polyurethane-acrylate Resins[J]. Chinese Journal of Applied Chemistry, ;2003, 20(8): 744-748. shu

Allyl ether Modified UV Curable Polyurethane-acrylate Resins

1.
Institute of Polymer Science, Zhongshan University, Guangzhou 510275

Corresponding author: YUAN Hui-Ya,
Received Date: 18 December 2002
Available Online: 13 May 2003
Fund Project: 广东省科技攻关项目(粤财企[2001]367号) (粤财企[2001]367号)

Three kinds of UV curable allyl ether modified polyurethane acrylate(PUAE), i.e., blended, blocked and terminated PUAEs were studied. It was found that the curing rate in oxygen investigated by DPC decreased in the order of blocked > terminated > blended. With increased allyloxy content, the final conversion of terminated PUAE reduced in nitrogen, but reversed in oxygen. IR showed that the conversion of allyloxy was higher in oxygen than in nitrogen, but reversed for acrylate which deceased from 75% in nitrogen to 60% in air. Thermogravimetric analysis(TGA) indicated that the mass loss of blended PUAE occurred at 118.74℃. The blocked and terminated PUAE were superior in thermal stability to the blended counterpart.
- allyl ether,
- polyurethane-acrylate,
- oxygen-inhibition
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