ring-opening polymerization

The preparing means of poly-lactic acid chiefly have immediate-condensation polymerization and the ring-open polymerization.

聚乳酸的制备方法主要有:直接缩聚法和开环聚合法.

The chemical purity, optical purity of the final product achieves the requirements of ring-opening polymerization of lactide.

最终所得产品在化学纯度、光学纯度均达到了聚合级丙交酯的要求。

There are two means available for the preparation of PGA-synthesis polymerization and ring-opening polymerization.

聚羟基乙酸的经典制备方法主要有两种:直接缩合聚合法和乙交酯开环聚合法.

Kinetics and mechanism of ring-opening polymerization of epichlorohydrin in the presence of rare earth coordination catalyst system

稀土络合催化环氧氯丙烷开环聚合动力学及其反应机理的研究

It is mainly synthesized by two chemical ways: ring-opening polymerization and direct polycondensation.

合成聚苹果酸的化学方法主要有开环聚合法与直接聚合法.

METHODS Under specified temperature and press, adopt coordination-insertion mechanisms by a ring-opening polymerization process.

方法：在一定的温度和压力下，采用配位-插入聚合法通过交酯开环合成聚乳酸-乙醇酸共聚物缓释材料。

Based on these, anionic ring-opening polymerization of β-butyrolactone was performed using tetrabutylammonium carboxylates ( TBA acetate) as initiator.

以四丁基醋酸铵为引发剂，β-丁内酯为单体进行阴离子开环聚合制备PHB均聚物。

Ring-opening Polymerization of Aliphatic Cyclic Esters by Using Organic Amino Calcium Catalyst

有机氨钙催化聚合脂肪族环酯

Progress in the Study of Phenolic resin using Ring-opening Polymerization of Benzoxazines

开环聚合酚醛树脂研究进展

Catalytic Ring-Opening Polymerization of Cycloalkenes by Mo ( CO)_6 System

六羰基钼体系催化环烯的开环聚合

Ring-Opening Polymerization Kinetics of Ethylene Oxide and Propylene Oxide

环氧乙烷环氧丙烷开环聚合反应动力学研究

Ring-Opening Polymerization of Ethylene Oxide Initiated by Sodium Methoxide

甲醇钠引发的环氧乙烷开环聚合反应过程

Ring-Opening Polymerization of Ethylene Oxide and Propylene Oxide

环氧乙烷和环氧丙烷开环聚合

It has also been found that, the polymerization rate of cyclic phosphoester monomer is highly depended on the structure of pendant side group and the ring substituent group when using stannous octoate as the catalyst.

研究还发现，以异辛酸亚锡为催化剂的磷酸酯单体的聚合速率与磷酸酯单体的侧基、环取代基密切相关，而且可以方便利用聚磷酸酯侧基对高分子进行功能化修饰。

Catalyst system for ring-opening polymerization of epoxide

环氧化物开环聚合催化体系概述

Synthesis and Microwave-assisted Ring-opening Polymerization of Cyclic Carbonate

环状碳酸酯的合成及微波开环聚合研究

High molecular weight PLA can be prepared by ring-opening polymerization of lactides.

高分子量的聚丙交酯主要由丙交酯开环聚合制备。

PLA has been produced by ring-opening polymerization of lactide or direct polycondensation of lactic acid.

制备聚乳酸常通过乳酸的直接聚合或丙交酯的开环聚合两种方法。

The reaction mechanism of the ring-opening polymerization of cyclosiloxane in the presence of water was proposed.

因此有水条件下的环硅氧烷阴离子开环聚合反应在聚合速率和分子量两个方面，均与无水时有较大区别。

Study on Mechanism and Kinetics for Ring-Opening Polymerization of Cyclosiloxane in the Presence of Water

有水条件下环硅氧烷开环聚合机理及动力学研究

This article primarily summarizes recent progress in the research on the preparation of block copolymers by combination of controlled radical polymerizations and ionic ring-opening polymerization, anionic polymerization, cationic vinyl polymerization and other living polymerizations.

本文着重介绍可控自由基聚合与离子开环聚合、阴离子聚合、烯类单体的阳离子聚合及其它活性聚合方法结合制备嵌段共聚物的研究现状和进展。

Study on Preparation and Property of Nylon 6/ Montmorillonite Hybrid Composites by Anionic Ring-opening Polymerization

阴离子开环聚合制备尼龙6/蒙脱土复合材料及其性能研究

A study on ring-opening polymerization of TPDC induced by laser ablated metal nanoparticles

激光烧蚀金属纳米粒子致TPDC开环聚合反应的研究

Study of Reaction Conditions and End-blocking Agent in D_4 Ring-opening Polymerization

D4乳液聚合反应条件及封端剂的研究

Progress on Syntheses, Properties and Applications of Polycarbonates by Ring-opening Polymerization of Cyclic Carbonate

环碳酸酯开环聚合物制备、性能和应用研究进展

Study on telechelic polymer& cationic ring-opening polymerization mechanism of tetrahydrofuran

遥爪聚合物的研究&四氢呋喃阳离子开环聚合机理