SYNTHESIS OF DCPD-MODIFIED UNSATURATED POLYESTERS BY SEMI-CONDENSATION POLYMERIZATION METHOD
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摘要: 本文用半缩聚法合成双环戊二烯型不饱和聚酯树脂。研究结果表明,合成反应的最佳工艺条件为总酸酐丙二醇DCPD=11.10.10~0.15;加成温度为120~140℃;加成反应时系统酸值为120~140mgKOH/g;加成反应时间为2小时。Abstract: DCPD-type unsaturated polyester resin prepared by using semi-condensation polymerization method is proposed. The results show that the optimal conditions of synthesis reaction are as follows:the total anhydride/propylene glycol/DCPD ratio is 11.10.10~0.15~0.15, temperature of addition reactions is 120-140℃,acid value of system is 120-140mg KOH/g when dropping DCPD and time of addition reaction is about 2h.
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