A general strategy for enhancing the migration resistance of plasticizer in poly(vinyl chloride)

IF 2.6 4区化学 Q3 POLYMER SCIENCE

Journal of Polymer Research Pub Date : 2025-03-17 DOI:10.1007/s10965-025-04323-1

Dekai Liu, Pingping Jiang, Nan Wang, Xuewen Li, Yuanyuan Qin, Jia Liu, Zhenhua Li, Yuchao Li

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引用次数: 0

Abstract

Due to the tendency of plasticizers like di-2-ethylhexyl phthalate (DOP) and bis(2-ethylhexyl)adipate (DOA) to migrate from PVC products, which pose serious health risks, and have therefore been increasingly restricted in many countries. Enhancing the migration resistance of plasticizers in PVC remains a critical challenge. Based on the molecular design concept of plasticizers, ester-branched epoxidized oleic acid plasticizers (E-ECD, E-EOD, and E-EHD) with excellent migration resistance in PVC were synthesized through esterification, Claisen condensation, and epoxidation reactions. The structural characteristics of the synthesized plasticizers were determined using FT-IR and ¹H NMR. During a 10-day migration resistance test, PVC plasticized with E-ECD exhibited a weight loss of less than 5 wt% in both polar and non-polar environments, with a migration rate of only 0.6 wt% in oily media. The potential plasticizing mechanisms of these plasticizers in PVC are elaborated in detail. This study offers a practical and generalizable strategy for the development of high-performance plasticizers with improved migration resistance.

Graphical abstract

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由于邻苯二甲酸二（2-乙基己基）酯（DOP）和己二酸二（2-乙基己基）酯（DOA）等增塑剂容易从聚氯乙烯产品中迁移，对健康造成严重危害，因此许多国家越来越多地限制使用这些增塑剂。提高聚氯乙烯中增塑剂的抗迁移性仍然是一项严峻的挑战。基于增塑剂的分子设计理念，通过酯化、克来森缩合和环氧化反应，合成了在聚氯乙烯中具有优异抗迁移性的酯支化环氧化油酸增塑剂（E-ECD、E-EOD 和 E-EHD）。利用傅立叶变换红外光谱和 1H NMR 确定了合成增塑剂的结构特征。在为期 10 天的抗迁移测试中，使用 E-ECD 增塑的聚氯乙烯在极性和非极性环境中的重量损失均小于 5 wt%，在油性介质中的迁移率仅为 0.6 wt%。详细阐述了这些增塑剂在聚氯乙烯中的潜在增塑机制。这项研究为开发抗迁移性更强的高性能增塑剂提供了一种实用且可推广的策略。

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来源期刊

Journal of Polymer Research 化学-高分子科学

CiteScore

4.70

自引率

7.10%

发文量

472

审稿时长

3.6 months

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.