SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS

Wang-xi Zhang; Yan-zhi Wang

Your Location：

Home >

Browse articles >

SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS

Papers | Updated：2021-06-21

- SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS
- SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS
- 高分子科学（英文版） 2008年26卷第4期页码：425-432
- Affiliations：
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2008-07-20
- Accepted：
Scan QR Code
Wang-xi Zhang, Yan-zhi Wang. SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS[J]. 高分子科学（英文版）, 2008,26(4):425-432.

Wang-xi Zhang, Yan-zhi Wang. SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS[J]. 2008, 26(4): 425-432.
Wang-xi Zhang, Yan-zhi Wang. SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS[J]. 高分子科学（英文版）, 2008,26(4):425-432. DOI：

Wang-xi Zhang, Yan-zhi Wang. SYNTHESIS AND PROPERTIES OF HIGH MOLECULAR WEIGHT POLY(LACTIC ACID) AND ITS RESULTANT FIBERS[J]. 2008, 26(4): 425-432. DOI：

摘要

Direct melt/solid polycondensation of lactic acid (LA) was carried out to obtain high molecular weight poly(lactic acid) (PLA) by a process using various catalysts in the first-step melt polycondensation

and followed solid polycondensation by using p-toulenesulfonic acid monohydrate (TSA) as the catalyst in the second step. Effects of various catalysts and reaction temperature on the molecular weight and crystallinity of resulting PLA polymers were examined. It was shown that SnCl2·2H2O/TSA

SnCl2·2H2O/succinic anhydride

and SnCl2·2H2O/maleic anhydride binary catalysts should be effective binary catalysts to obtain high molecular weight PLA of more than 1.2× 105. A conventional melt spinning method was used to spin PLA fibers

which displayed tensile strength of (382.76 ± 1.41) MPa and tensile modulus of (4.36 ± 0.07) GPa.

Abstract

SnCl2·2H2O/succinic anhydride

which displayed tensile strength of (382.76 ± 1.41) MPa and tensile modulus of (4.36 ± 0.07) GPa.

关键词

Keywords

references

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

From Molecular Defect to Macroscopic Performance: Manipulating Dichroism and Mechanics in Iodine-doped Poly(vinyl alcohol) via Ethylene Incorporation

Sliding Dynamics of Ring Chain on a Rod-Coil Block Copolymer in Rotaxane

Pyrimidoisoindigo-based Polymers for Ambipolar Charge Transport

Two-way Shape Memory Effect of Polycaprolactone-based Polyurethane via Synergistic Role of Hydrogen Bonding and Crystallization Tuned by Malic Acid

Improvements of Hydrophobicity and Toughness of Epoxy Coatings Modified with Hydroxyl-terminated Fluororubber