Formation of Poly(L-lactide) Mesophase and Its Chain Mobility Dependent Kinetics

Yuan-ying Liang; Hu Tang; Gan-ji Zhong; Zhong-ming Li

doi:10.1007/s10118-014-1505-y

Your Location：

Home >

Browse articles >

Formation of Poly(L-lactide) Mesophase and Its Chain Mobility Dependent Kinetics

Updated：2021-06-21

- Formation of Poly(L-lactide) Mesophase and Its Chain Mobility Dependent Kinetics
- Chinese Journal of Polymer Science Vol. 32, Issue 9, Pages: 1176-1187(2014)
- Affiliations：
  
  College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  **Gan-ji Zhong (钟淦基), E-mail: ganji.zhong@scu.edu.cn
  Zhong-ming Li (李忠明), E-mail: zmli@scu.edu.cn
- Funds：
- DOI：10.1007/s10118-014-1505-y
  CLC：
- Received：18 March 2014，
  
  Revised：2014-04-24，
  
  Accepted：09 May 2014，
  
  Published：2014-09
- Accepted：
Scan QR Code
Yuan-ying Liang, Hu Tang, Gan-ji Zhong, et al. Formation of Poly(L-lactide) Mesophase and Its Chain Mobility Dependent Kinetics[J]. Chinese Journal of Polymer Science, 2014, 32(9): 1176-1187.
DOI：

Yuan-ying Liang, Hu Tang, Gan-ji Zhong, et al. Formation of Poly(L-lactide) Mesophase and Its Chain Mobility Dependent Kinetics[J]. Chinese Journal of Polymer Science, 2014, 32(9): 1176-1187. DOI： 10.1007/s10118-014-1505-y.

摘要

Abstract

In the present work

the PLLA mesophase formation and its kinetics at the advent of a chain mobility accelerator (polyethylene glycol (PEG)) are investigated by wide angle X-ray diffraction (WAXD) and time-resolved Fourier transform infrared spectroscopy (FTIR). It is interestingly found that the presence of PEG could accelerate the formation of PLLA mesophase notably due to the enhanced chain mobility

giving rise to a substantially reduced half time (

0.5

) of PLLA mesophase formation from 129 min to 8 min. The Avrami exponents (

) for the kinetics of mesophase formation are ~0.5 for neat PLLA and 1 for PLLA/PEG

respectively

indicating that 1D-rod growth through heterogeneous nucleation occurs during formation of PLLA mesophase. Tensile testing demonstrates that PLLA mesophase could increase the tensile strength and modulus but decrease the elongation at break.

关键词

Keywords

references

Views

268

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Impact of Annealing on the Melt Recrystallization of a-PDLA/α-PLLA Double-layered Films

A Robust Self-healing Polyurethane Elastomer Enabled by Tuning the Molecular Mobility and Phase Morphology through Disulfide Bonds

Effect of Exogenous Carboxyl and Hydroxyl Groups on Pyrolysis Reaction of High Molecular Weight Poly(L-Lactide) under the Catalysis of Tin

Enhancing the Crystallization Performance of Poly(L-lactide) by Intramolecular Hybridizing with Tunable Self-assembly-type Oxalamide Segments

2026-9 Contents

Related Author

Yun-Peng Li

Hao-Ran Shen

Shao-Juan Wang

Hao Zhang

Jian Hu

Rui Xin

Xiao-Li Sun

Shou-Ke Yan

Related Institution

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology

Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology

Guangdong Provincial Key Laboratory of Natural Rubber Processing, Agricultural Products Processing Research Institute of Chinese Academy of Tropical Agricultural Sciences

State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineerng, Sichuan University

Jilin Biomedical Polymers Engineering Laboratory

⁰