8-丙烯酰氧喹啉及其聚合物增感的丙烯腈光聚合

PHOTOPOLYMERIZATION OF ACRYLONITRILE SENSITIZED BY 8-ACRYLOYLOXYQUINOLINE AND ITS POLYMER

我们曾研究过电子给体基团和电子受体基团共存于同一分子中的一类功能性单体,如甲基丙烯酸-4-(N,N)-二甲氨基苄酯(DMABMA)、N-(4-N′,N′-二甲氨基苄基)丙烯酰胺(DMAPAA)、8-丙烯酰氧喹啉(AQ)。N-丙烯酸-N′=苯基哌嗪(APP)

The photopolymerization of acrylonitrile (AN) was studied by using 8-acryloyloxyquino-line (AQ) and its polymer (PAQ) as sensitizers under UV irradiation. The photopolymerization rate of AN in DMF by using AQ as sensitizer is proportional to 0.36th power of AQ concentration and 1.10th power of AN concentration. In the case of PAQ as sensitizer for the photopolymerization of AN, the rate is proportional to 0.31th power of PAQ concentration and 0.73 th power of AN concentration. From the recording of fluorescence intensity of PAN sensitized by AQ and PAQ, it is confirmed that AQ and PAQ not only sensitized the photopolymerization of AN but also entered into the PAN chains. The initiation mechanism was tantatively deduced.