Fourier-Transform Infrared Spectrum Study on the Influence of Additives on Polyvinyl-Chloride Crystallization

刘亚群; 张超灿

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Fourier-Transform Infrared Spectrum Study on the Influence of Additives on Polyvinyl-Chloride Crystallization

更新时间：2026-09-14

- Fourier-Transform Infrared Spectrum Study on the Influence of Additives on Polyvinyl-Chloride Crystallization
- 添加剂对PVC结晶影响的傅立叶转换红外光谱研究
- Issue 1, Pages: 49-54(2006)
- 作者机构：
  
  1. 武汉理工大学理学院应化系
  2. 武汉理工大学材料学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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刘亚群, 张超灿. Fourier-Transform Infrared Spectrum Study on the Influence of Additives on Polyvinyl-Chloride Crystallization[J]. 2006, (1): 49-54.
DOI：

刘亚群, 张超灿. Fourier-Transform Infrared Spectrum Study on the Influence of Additives on Polyvinyl-Chloride Crystallization[J]. 2006, (1): 49-54. DOI：

摘要

以乙酰苯胺、己二酸和邻苯二甲酸氢钾作为添加剂

利用傅立叶转换红外光谱研究了三种添加剂对PVC分子构象的影响.通过对结晶特征吸收峰的分析

表明结晶相中PVC分子链均为反式间规的伸展链构象.乙酰苯胺和己二酸使PVC的结晶度增大

而邻苯二甲酸氢钾则使PVC结晶度减小.对无定型相PVC分子构象的研究结果表明

乙酰苯胺和己二酸使无定型相中的短反式有序构象增加

同时使TTG*G*构象缺陷增多.因此乙酰苯胺和己二酸可以使PVC的折叠链晶体结构含量增大

使结晶变得完善.此外

己二酸既改变了无定型相PVC分子链构象

也使结晶相PVC分子链构象改变

而乙酰苯胺和邻苯二甲酸氢钾只影响非晶PVC分子链构象.

Abstract

Acetanilide

adipic acid and potassium hydrogen phthalate are chosed as additives for PVC

and their effects on PVC molecule conformation are studied by FT-IR.From the analysis of the crystalline absorption

it is infered that in crystalline phase

PVC chains are in extended chain conformation. In addition

acetanilide and adipic acid increase the proportion of PVC crystalline phase

while potassium hydrogen phthalate decreases PVC crystallinity.For amorphous PVC

acetanilide and adipic acid enhance the shorttrans-syndiotactic sequence absorption

and make the part of TTG*G* conformation defect increase.Thus

acetanilide and adipic acid raise the percentage of chain-folded crystal and perfect PVC crystallinity.In addition

acetanilide and potassium hydrogen phthalate can only interact with amorphous PVC chains

however

adipic acid not only influences amorphous PVC chain conformation

but also can affect PVC crystalline phase.

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Keywords

references

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