Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)

温亮; 辛忠

doi:10.1016/S1004-9541(09)60145-2

Your Location：

Home >

Browse articles >

Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)

Updated：2026-01-06

- Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)
- Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)
- 中国化学工程学报（英文版） 2010年18卷第6期页码：899-904
- Affiliations：
  
  State Key Laboratory of Chemical Engineering, East China University of Science and Technology,Shanghai,China,200237
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (20876042);Program of Shanghai Subject Chief Scientist (10XD1401500);Research Fund for the Doctoral Program of Higher Education of China
- DOI：10.1016/S1004-9541(09)60145-2
  中图分类号：
- 纸质出版：2010
- Accepted：
Scan QR Code
温亮, 辛忠. Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)[J]. 中国化学工程学报（英文版）, 2010,18(6):899-904.

WEN Liang, XIN Zhong. Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)[J]. , 2010, 18(6): 899-904.
温亮, 辛忠. Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)[J]. 中国化学工程学报（英文版）, 2010,18(6):899-904. DOI： 10.1016/S1004-9541(09)60145-2.

WEN Liang, XIN Zhong. Effect of a Novel Nucleating Agent on Isothermal Crystallization of Poly(L-lactic acid)[J]. , 2010, 18(6): 899-904. DOI： 10.1016/S1004-9541(09)60145-2.

摘要

Abstract

The effect of a novel active nucleating agent(TBC8-eb) on the isothermal crystallization of poly(L-lactic acid) (PLLA) was studied by differential scanning calorimetry(DSC) and Fourier transform infrared spectroscopy(FTIR). The analysis on kinetics demonstrates that TBC8-eb can not only accelerate the crystallization rate but also transform most of the original spherulite crystals of PLLA into sheaf-like crystals. Furthermore

the free energy of folding(σ

) of PLLA and PLLA with TBC8-eb is 0.15 and 0.06 J·m

-2

respectively

which suggests that the addition of TBC8-eb favors the regular folding of molecule chains in the crystallization of PLLA

improv-ing its crystallization rate. The FTIR results show that TBC8-eb can accelerate the conformational ordering of PLLA in the isothermal crystallization. The conformational ordering of PLLA nucleated with TBC8-eb begins with the interchain interaction of —CH

and then a short helix emerges where a couple of —CH

groups interact.

关键词

Keywords

references

浏览量

293

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

The melting transformation mechanism of corundum and mullite in coal ash under reducing atmosphere

Evaporation crystallization for the extraction of potassium bromide from bitters by phase equilibrium

Study on purification process of electronic-rade cerium ammonium nitrate through crystallization

Enrichment and purification of nervonic acid from Acer truncatum seed oil by combining vacuum distillation and low-temperature crystallization: Experiments and process modeling

Separation of chlorineebromine-based solid solution in bittern tail solution by phase equilibrium