高稳定性的丙烯酸酯-偏氯乙烯共聚物的制备及结晶性表征

林泽中; 刘天宇; 肖楠; 李茂林; 祝司政

doi:10.14028/j.cnki.1003-3726.2024.24.099

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高稳定性的丙烯酸酯-偏氯乙烯共聚物的制备及结晶性表征

研究论文 | 更新时间：2024-09-10

- 高稳定性的丙烯酸酯-偏氯乙烯共聚物的制备及结晶性表征
- Preparation and Crystallization Characterization of Acrylate-vinylidene Chloride Copolymers with High Stability
- 高分子通报 2024年37卷第9期页码：1300-1308
- 作者机构：
  
  青海民族大学化学化工学院，青海省应用物理化学重点实验室，西宁 810007
- 作者简介：
  
  *林泽中，E-mail: 1020210013@tju.edu.cn
- 基金信息：
  
  青海省重点研发与转化计划(2022-QY-210);天津大学与青海民族大学盐湖专项联合基金(30447)
- DOI：10.14028/j.cnki.1003-3726.2024.24.099
  中图分类号：
- 纸质出版日期：2024-09-20，
  
  网络出版日期：2024-06-27，
  
  收稿日期：2024-04-03，
  
  录用日期：2024-05-20
- 稿件说明：
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林泽中, 刘天宇, 肖楠, 李茂林, 祝司政. 高稳定性的丙烯酸酯-偏氯乙烯共聚物的制备及结晶性表征. 高分子通报, 2024, 37(9), 1300–1308

Lin, Z. Z.; Liu, T. Y.; Xiao, N.; Li, M. L.; Zhu, S. Z. Preparation and crystallization characterization of acrylate-vinylidene chloride copolymers with high stability. Polym. Bull. (in Chinese), 2024, 37(9), 1300–1308
林泽中, 刘天宇, 肖楠, 李茂林, 祝司政. 高稳定性的丙烯酸酯-偏氯乙烯共聚物的制备及结晶性表征. 高分子通报, 2024, 37(9), 1300–1308 DOI： 10.14028/j.cnki.1003-3726.2024.24.099.

Lin, Z. Z.; Liu, T. Y.; Xiao, N.; Li, M. L.; Zhu, S. Z. Preparation and crystallization characterization of acrylate-vinylidene chloride copolymers with high stability. Polym. Bull. (in Chinese), 2024, 37(9), 1300–1308 DOI： 10.14028/j.cnki.1003-3726.2024.24.099.

摘要

在丙烯酸酯-偏氯乙烯半种子乳液聚合中，通过引入可逆加成断裂转移（RAFT）试剂，可以原位产生大分子乳化剂，进而部分替代小分子乳化剂，从而制备高稳定性的共聚物乳液。研究了乳液聚合过程中各类助剂及引发剂的最佳加入量，并研究了不同丙烯酸酯单体和偏氯乙烯（VDC）单体共聚竞聚率对乳液聚合的影响。成功合成了丙烯酸甲酯-偏氯乙烯（VDC-MA）、丙烯酸乙酯-偏氯乙烯（VDC-EA）和丙烯酸丁酯-偏氯乙烯（VDC-BA）系列共聚物，并利用傅里叶红外光谱（FTIR）和X射线衍射（XRD）表征了共聚物薄膜的结晶性，因其结晶性而导致共聚物薄膜具有优异的阻隔性能，为其在包装领域的应用提供了理论支撑。

Abstract

In acrylate-vinylidene chloride semi-seed emulsion polymerization

macromolecular emulsifiers can be produced

in situ

by introducing reversible addition fragmentation chain transfer (RAFT) reagents

and then partially replace small molecular emulsifiers

and thus high stability copolymer emulsions can be prepared. The optimum addition amount of various additives and initiators in emulsion polymerization was studied

and the effect of different acrylate monomers and VDC monomer copolymerization on emulsion polymerization was studied. Methyl acrylate-vinylidene chloride (VDC-MA)

ethyl acrylate-vinylidene chloride (VDC-EA) and butyl acrylate-vinylidene chloride (VDC-BA) copolymers have been successfully synthesized. The crystallinity of copolymer films having excellent barrier properties are characterized by Fourier infrared spectroscopy (FTIR) and X-ray diffraction (XRD)

which provided theoretical support for the application of copolymer in packaging fields.

关键词

偏氯乙烯乳液共聚物结晶性

Keywords

Vinylidene chlorideEmulsionCopolymersCrystallinity

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