Direct Crystallization of Form III from Polybutene-1 Melt

Jing-hua Liu; Jing-qing Li; Bin-yuan Liu; Shi-chun Jiang

doi:10.11777/j.issn1000-3304.2023.23052

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Direct Crystallization of Form III from Polybutene-1 Melt

Rapid Communication | 更新时间：2023-09-25

- Direct Crystallization of Form III from Polybutene-1 Melt
- ACTA POLYMERICA SINICA Vol. 54, Issue 8, Pages: 1139-1143(2023)
- 作者机构：
  
  1.天津大学材料学院天津 300072
  2.河北工业大学高分子科学与工程系河北省功能高分子重点实验室天津 300130
- 作者简介：
  
  Shi-chun Jiang, E-mail: scjiang@tju.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2023.23052
  CLC：
- Published：20 August 2023，
  
  Published Online：18 May 2023，
  
  Received：06 March 2023，
  
  Accepted：18 April 2023
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刘菁华,李景庆,刘宾元等.聚丁烯-1熔体结晶直接形成晶型Ⅲ[J].高分子学报,2023,54(08):1139-1143.

Liu Jing-hua,Li Jing-qing,Liu Bin-yuan,et al.Direct Crystallization of Form III from Polybutene-1 Melt[J].ACTA POLYMERICA SINICA,2023,54(08):1139-1143.
刘菁华,李景庆,刘宾元等.聚丁烯-1熔体结晶直接形成晶型Ⅲ[J].高分子学报,2023,54(08):1139-1143. DOI： 10.11777/j.issn1000-3304.2023.23052.

Liu Jing-hua,Li Jing-qing,Liu Bin-yuan,et al.Direct Crystallization of Form III from Polybutene-1 Melt[J].ACTA POLYMERICA SINICA,2023,54(08):1139-1143. DOI： 10.11777/j.issn1000-3304.2023.23052.

摘要

通过广角X射线衍射和示差扫描量热技术测定了低等规度聚丁烯-1 (PB-1)在不同温度熔融并非等温结晶后形成的结晶结构. 首次观测到在常压条件下均聚聚丁烯-1熔体结晶形成晶型Ⅲ，并且发现非等温结晶过程中晶型Ⅲ的相对含量随熔融温度的升高而增加，实验结果将有助于理解PB-1的结晶和晶型转变行为.

Abstract

The crystalline structure of polybutene-1 (PB-1) with low tacticity was investigated by wide angle X-ray diffraction and differential scanning calorimetry after heating to different melting temperatures and non-isothermal crystallization. The formation of form III was observed for the first time in the melt crystallization of PB-1 at atmospheric pressure. It was revealed that the fraction of the form III increased with the melting temperature during the non-isothermal crystallization. The results would be helpful to understand the crystallization and crystal transformation behaviors of PB-1.

关键词

聚丁烯-1熔体结晶晶型III

Keywords

‍Polybutylene-1Melt crystallizationForm III

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