Study on crystallization of poly (L-lactic acid) nucleated with p-tert-butylcalix[4]arene inclusion complex

SHI Yaoqi; XIN Zhong; LU Yingyin; ZHOU Shuai

doi:10.11949/j.issn.0438-1157.20150798

您当前的位置：

首页 >

文章列表页 >

Study on crystallization of poly (L-lactic acid) nucleated with p-tert-butylcalix[4]arene inclusion complex

更新时间：2025-12-10

- Study on crystallization of poly (L-lactic acid) nucleated with p-tert-butylcalix[4]arene inclusion complex
- CIESC Journal Issue 9, Pages: 3762-3768(2015)
- 作者机构：
  
  1. 华东理工大学化工学院, 上海市多相结构材料化学工程重点实验室,上海,200237
  2. 华东理工大学化工学院, 化学工程联合国家重点实验室,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150798
  CLC： Q316.6
- Online First：05 September 2015，
  
  Published：05 September 2015
- 稿件说明：
移动端阅览
SHI Yaoqi, XIN Zhong, LU Yingyin, et al. Study on crystallization of poly (L-lactic acid) nucleated with p-tert-butylcalix[4]arene inclusion complex[J]. CIESC Journal, 2015, (9): 3762-3768.
DOI：

SHI Yaoqi, XIN Zhong, LU Yingyin, et al. Study on crystallization of poly (L-lactic acid) nucleated with p-tert-butylcalix[4]arene inclusion complex[J]. CIESC Journal, 2015, (9): 3762-3768. DOI： 10.11949/j.issn.0438-1157.20150798.

摘要

以对叔丁基杯[4]芳烃(tBC4)为主体

甲苯、邻二甲苯、间二甲苯、对二甲苯为客体分子

制备4种tBC4包合物tBC4-t、tBC4-ox、tBC4-mx、tBC4-px。考察了tBC4包合物对左旋聚乳酸(PLLA)结晶性能及结晶形态的影响。结果表明

tBC4包合物能将PLLA的结晶峰值温度(Tp)提高近7℃;进一步研究发现几种包合物在经高温后

客体小分子逃逸

样品均改变为相同的晶体结构

因此对PLLA成核有相同的影响;此外

含有成核剂的PLLA球晶尺寸小于空白PLLA的球晶尺寸

成核剂的加入不改变PLLA球晶生长的方式。

Abstract

In this paper

four inclusion complexes were obtained by recrystallizing p-tert-butylcalix[4]arene (tBC4) from toluene

o-xylene

m-xylene and p-xylene. Then

the effects of tBC4 inclusion complexes on crystallization behavior of poly (L-lactic acid) (PLLA) were investigated with differential scanning calorimeter and polarized optical microscopy. The results showed that the crystallization peak temperature of PLLA nucleated by tBC4 inclusion complexes increased 7℃

which indicated that these compounds owned the nucleation ability for PLLA. After suffering high temperature

crystal structures of four inclusion complexes reverted to nearly the same. Therefore

all these inclusion complexes showed the same nucleation ability. Crystallization morphologies of PLLA and nucleated PLLA were studied by means of polarizing optical microscopy

indicating that the addition of nucleating agent can decrease PLLA spherulite size without changing its growth pattern.

关键词

Keywords

references

Views

227

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Crystallization morphologies and non-isothermal crystallization kinetics of isotactic polypropylene modified by α/β compounded nucleating agents

Performance analysis and application of thermal and humidity control system cascade driven by waste heat

Recent advances and perspectives on sulfide-based photocatalysts for hydrogen production

Analysis of flow field characteristics and mixing performance of different SK-type static mixers

Study on performance enhancement and cold retention characteristics of solid packed bed cold energy storage

Related Author

石尧麒

Related Institution

State Key Laboratory of Chemical Engineering, Department of Product Engineering, School of Chemical Engineering, East China University of Science and Technology

⁰