melt polymerization

The process conditions in the stages of esterification , melt polymerization and solid state polymerization were discussed .

讨论了酯化反应，熔融聚合，固相聚合阶段的工艺条件。

In the four synthesis technologies of PBI , solution polymerization and melt polymerization were relatively mature synthesis process .

其中溶液聚合法和熔融聚合法是相对成熟的合成工艺。

Determination of equilibrium constant for silicate melt polymerization and its application

硅酸盐熔体聚合度的确定及其应用

An Investigation of preparing High Viscosity PET by Melt Polymerization

熔融法合成高粘度PET的研究

Preparation of Polylactide / Attapulgite Nanocomposites by Melt Polymerization

熔融复合法制备聚乳酸/凹凸棒土纳米复合材料

The direct melt polymerization of poly ( lactic acid-co-caprolactone ) was studied by orthogonal experiment and SPSS software .

应用正交实验及SPSS统计软件研究聚乳酸-己内酯直接熔融聚合工艺。

Meanwhile , various stabilizers were used to promote the heat stability of the high viscosity PET , and some ideas were given for preparing high viscosity PET by melt polymerization .

并使用多种稳定剂来改善高粘度树脂的热稳定性，提出了用熔融法制备高粘度PET的一些设想。

Hydrolytic polymerization of caprolactam is the earliest and the most technologically sophisticated Polymerization Technology , For the recent 70 years , the polymerization production of caprolactam is mainly dependent on the method of hydrolytic melt polymerization .

己内酰胺水解聚合是开发最早、技术最成熟的一种聚合工艺，最近70年来，己内酰胺的聚合生产主要是靠水解熔融聚合的方法完成。

Based on the synthetic research , using PTA , 1,3-PDO as raw materials , 300L PTT melt polymerization with Ti / Sb / Co / P composite catalyst system was carried out . The mechanical property of PTT product was investigated .

以PTA、1,3-PDO为原料，在小试合成研究的基础上，采用Ti/Sb/Co/P复合催化体系进行了300L釜规模的PTT熔融聚合研究，并研究了PTT产品的物理机械性能。

The results show that high-molecular weight PLA can be prepared by the direct melt condensation polymerization at suitable technological condition and the product has good biodegradability .

结果表明：采用适当的工艺能通过熔融缩聚法制备出高分子质量的聚乳酸，且具有良好的生物降解性能。

In this paper , the direct melt condensation polymerization condition for the polylactic acid ( PLA ) had been discussed such as process , moisture content of raw material , catalyst , temperature and remain pressure .

研究了以乳酸单体为原料的直接熔融缩聚的工艺条件，包括工艺路线、原料含水率、催化剂种类、温度及余压对合成的影响。

The copolymer of lactic acid and amino acid was prepared by the melt / solid polymerization .

采用熔融固相聚合制备了乳酸-氨基酸共聚物。

The poly ( lactic acid ) synthesized by the solution polycondensation , direct melt polycondensation , melt polycondensation / chain extending and melt polycondensation / solid polymerization is reviewed .

综述了溶液缩聚及直接熔融缩聚、熔融缩聚-扩链、熔融缩聚-固相聚合合成聚乳酸的研究进展。