低温溶液缩聚

叔胺酸接受剂对低温溶液缩聚和共缩聚反应的影响

The Effect of Tertiary Amine as Acid Acceptor on the Low-Temperature Solution Polycondensation and Copolycondensation

本文采用低温溶液缩聚的方法，用polyethyleneglycolBis（4-carboxyphenyl）ethers（聚乙二醇双（4-羧苯）醚，简称PEG3）与对苯二胺首次成功地合成了热致性的液晶聚酰胺。

New thermotropic liquid crystalline polyamides were prepared from polyethyleneglycol bis ( 4-caroxylhenyl ) ethers ( PEG3 ) and p-phenylenediamine by using solution condensation method at a relative low temperature .

低温溶液缩聚合成聚芳醚酮酮的研究

Study on the synthesis of polyaromatic ether ketone ketones by low temperature solution polycondensation

采用低温溶液法共缩聚反应合成了对苯二甲酰氯（TPC）摩尔分数为0.05~0.15的改性间位芳香族聚酰胺（PMIA）共聚物。

Modified meta-aramid ( PMIA ) copolymer with TPC mole fraction of 0.05 ~ 0.15 was prepared by low-temperature-solution polycondensation in DMAc .

本文分别采用低温溶液直接缩聚法和沉析法制备PPTA浆粕，并通过对其成形过程的数学分析，对PPTA浆粕的成形机理进行了较为深入的研究。

In this paper , PPTA pulps were prepared directly from the precipitation of PPTA solution that obtained from solution polycondensation at low temperature . The formation mechanism of PPTA pulps is investigated by means of mathematic analysis .