Synthesis and characterization of photosensitive polyesters by phase-transfer-catalyzed polycondensation
Synthesis and characterization of photosensitive polyesters by phase-transfer-catalyzed polycondensation
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DOI：
10.1163/156855503768338241
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发表时间：
2003-01
影响因子：
1.6
通讯作者：
S. Priyarega;A. Muthusamy;K. Kaniappan;S. Murugavel
中科院分区：
文献类型：
--
作者：
S. Priyarega;A. Muthusamy;K. Kaniappan;S. Murugavel
以1，3-二(4-羟基苯基)丙烯和3-(4-羟基-3-甲氧基苯基)-1-(4-羟基苯基)丙烯与己二酰氯为原料，采用界面缩聚技术合成了主链含光活性查尔酮基团的光敏聚酯。对不同相转移催化剂(季铵盐)的两相缩聚反应进行了基础研究。用特性粘数、紫外光谱、红外光谱、核磁共振氢谱和碳氢谱对合成的聚合物进行了表征。对这些聚合物的热稳定性和光化学性质进行了研究。用热重分析和差示扫描量热仪对其热性能进行了评价。用紫外分光光度法研究了聚合物的光敏性。
Photosensitive polyesters containing photoreactive chalcone moieties in the main chain were synthesized from 1,3-bis(4-hydroxyphenyl)propenone and 3-(4-hydroxy-3-methoxyphenyl)-1- (4-hydroxyphenyl)propenone with adipoylchloride by an interfacial polycondensation technique. Fundamental studies on the two phase polycondensation using various phase transfer catalysts (quarternary ammonium salts) were done. The synthesized polymers were characterized by intrinsic viscosity, UV,IR, 1H-NMR and C,H-analysis. These polymers were studied for their thermal stability and photochemical properties. Thermal properties were evaluated by thermogravimetric analysis and differential scanning calorimetry. The photosensitivity of the polymer was investigated by UV spectrophotometry.