苯甲酰基化聚苯乙烯的合成和表征

合成并表征了具有芳香酮侧链结构的苯甲酰基聚苯乙烯（BPS），讨论了反应时间，温度，溶剂，催化剂用量及投料比对聚苯乙烯（PS）转化为BPS的转化率和交联反应的影响，结果表明，PS在合适条件下可转化成BPS，PS转化成BPS后其UV吸收强度明显增大，BPS在紫外光照射下发生降解，BPS中的羰基可以与某些肼反应生成腙。

Synthesis and Photochemical Properties of Benzoylated Polystyrene

Benzoylated polystyrene(BPS) was synthesized and the effects of the reaction time, the amount of catalyst , the temperature, the solvents and the molar ratio of AlCl 3 to C 6H 5COCl and PS to C 6H 5COCl on the conversion of PS to BPS were investigated. The structure of BPS and the conversions of PS to BPS were characterized by means of IR and UV absorption spectral measurements. BPS photochemical activities were characterized by measuing the changes of the viscosity of the BPS solution. BPS can also react with 2,4 dinitrophenylhydrazine to form a deeply orange hydrazone(DNPH BPS).