PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER

Your Location：

Home >

Browse articles >

PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER

Papers | Updated：2021-06-21

- PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER
- PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER
- 高分子科学（英文版） 2001年19卷第4期页码：351-357
- Affiliations：
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2001-08-20
- Accepted：
Scan QR Code
PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER[J]. 高分子科学（英文版）, 2001,19(4):351-357.

PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER[J]. 2001, 19(4): 351-357.
PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER[J]. 高分子科学（英文版）, 2001,19(4):351-357. DOI：

PREPARATION AND PROPERTIES OF HIGH STRENGTH RODS FROM L-AND D,L-LACTIDE COPOLYMER[J]. 2001, 19(4): 351-357. DOI：

摘要

Starting with the L- and D

L-lactide copolymer (L:DL = 9: 1) [P(L-DL)LA] of Mw = 32.1×104

rods were obtainedthrough a two stage process: (1) melt-extrusion at 155℃

and (2) hot-drawing at 90℃ to various drawing ratios. Themolecular weight of P(L-DL)LA fell to 9.3×104 as a consequence of the production process. The crystallization andmolecular orientation of P(L-DL)LA developed as a result of the hot-drawing. The mechanical strengths of the rods increasewith the drawing ratio. The maximum for tensile strength

bending strength

bending modulus

and shear strngth are 329 MPa

237 MPa

8.8 GPa

and 157 MPa

respectively.

Abstract

Starting with the L- and D

L-lactide copolymer (L:DL = 9: 1) [P(L-DL)LA] of Mw = 32.1×104

rods were obtainedthrough a two stage process: (1) melt-extrusion at 155℃

bending strength

bending modulus

and shear strngth are 329 MPa

237 MPa

8.8 GPa

and 157 MPa

respectively.

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

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

Experimental Investigation of Graphene and TiO2 Reinforced Poly(vinyl alcohol)-based Fiber Metal Laminates

Sequence-encoded Conformation Pathways in Viscoelastic Microphase Separation of Multiblock Copolymers

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

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