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Synthesis of NLO polycarbonates via the ring-opening polymerization of macrocyclic prepolymers

机译:通过宏环预聚物的开环聚合对NlO聚碳酸酯的合成

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The synthesis and characterization of polycarbonates and polyformals is described. Copolymers of bisphenol A (BPA) and either a triphenyloxazole (1) or phenylquinoxaline (2) monomer were prepared. The polycarbonate copolymers were prepared by ring-opening polymerization of macrocyclic prepolymers using a solvent-free process. Preliminary electro- optic measurements have been performed on the polycarbonate copolymers of BPA and 1. Polyformals have also been prepared by a conventional polymerization process involving the reaction of dichloromethane with different feed ratios of BPA and either 1 or 2. The glass transition temperature of either the polyformals or polycarbonates is dramatically increased by increasing mole fractions of monomers 1 and 2.
机译:描述了聚碳酸酯和多环的合成和表征。制备双酚A(BPA)和三苯胺唑(1)或苯基喹喔啉(2)单体的共聚物。通过使用无溶剂方法通过宏环聚合的开环聚合来制备聚碳酸酯共聚物。已经对BPA的聚碳酸酯共聚物进行了初步电光测量,并且还通过涉及二氯甲烷与BPA的不同饲料比的反应和1或2的常规聚合方法制备多环。玻璃化转变温度通过增加单体1和2的摩尔级分,通过增加多环或聚碳酸酯。

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