研究了乳酸熔融缩聚和溶剂回流脱水缩聚两种聚合方法及几种扩链剂对乳酸聚合物相对分子质量的影响。
The influence of melt polycondensation and solvent refluxing methods of lactide polymerization and chain extension agents on relative molecular weight of polylactide was studied.
其次，乳酸分子于化学反应容器中连成长链或组成聚合物，然后产生聚乳酸纤维。
In the second stage, lactic-acid molecules are linked into long chains, or polymers, in chemical-reaction vessels, to produce PLA.
以园二色谱(CD)测试了聚合物中聚乳酸链段的旋光性能。
CD (circular dichroism) spectroscopy was used to measure the circular dichroism of O-LLA segments in polymers.
聚乳酸乙醇酸（PLGA）是一种可降解的高分子聚合物，其对药物具有缓释作用，且有较好的生物相容性。
PLGA is a kind of degradable high molecular polymer with good biocompatibility. Drug connected have the function of control release.
聚乳酸是一种热塑性聚合物，具有良好的加工及应用性能。
As a thermoplastic polymer with good processability and application performance, PLA will be used very widely.
有机高分子聚合物聚乳酸、聚乙醇酸具有良好的生物相容性和可降解性，已被广泛应用于临床。
Polylactic acid(PLA) and polyglycolic acid(PGA) have been commercially available for human clinical use because of their satisfactory biocompatibility and biodegradation.
有机高分子聚合物聚乳酸、聚乙醇酸具有良好的生物相容性和可降解性，已被广泛应用于临床。
Polylactic acid(PLA) and polyglycolic acid(PGA) have been commercially available for human clinical use because of their satisfactory biocompatibility and biodegradation.
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