{"title":"Internal plasticization of PVC","authors":"P. Skelly, Longbo Li, R. Braslau","doi":"10.1080/15583724.2021.1986066","DOIUrl":null,"url":null,"abstract":"Abstract Polyvinyl Chloride (PVC) is among the most abundant plastics worldwide. Phthalates and other plasticizers—small molecules added to PVC to impart flexibility—have raised numerous health concerns due to their tendency to migrate out of PVC, where they can be ingested or contaminate the environment. Internal plasticization, in which a plasticizer is covalently bound to the PVC backbone, offers a solution to the problem of plasticizer migration. This comprehensive review covers the preparation of internally plasticized PVC in the literature. Strategies fall into three main categories: nucleophilic substitution of chlorine atoms on PVC; graft polymerization using plasticizing monomers, usually from defect sites in the PVC backbone; and copolymerization of vinyl chloride with monomers bearing plasticizing species. Minimizing cost and number of synthetic steps are important considerations when designing plasticizers for this large-scale commodity plastic.","PeriodicalId":20326,"journal":{"name":"Polymer Reviews","volume":"126 1","pages":"485 - 528"},"PeriodicalIF":11.1000,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Reviews","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1080/15583724.2021.1986066","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 14
Abstract
Abstract Polyvinyl Chloride (PVC) is among the most abundant plastics worldwide. Phthalates and other plasticizers—small molecules added to PVC to impart flexibility—have raised numerous health concerns due to their tendency to migrate out of PVC, where they can be ingested or contaminate the environment. Internal plasticization, in which a plasticizer is covalently bound to the PVC backbone, offers a solution to the problem of plasticizer migration. This comprehensive review covers the preparation of internally plasticized PVC in the literature. Strategies fall into three main categories: nucleophilic substitution of chlorine atoms on PVC; graft polymerization using plasticizing monomers, usually from defect sites in the PVC backbone; and copolymerization of vinyl chloride with monomers bearing plasticizing species. Minimizing cost and number of synthetic steps are important considerations when designing plasticizers for this large-scale commodity plastic.
期刊介绍：
Polymer Reviews is a reputable publication that focuses on timely issues within the field of macromolecular science and engineering. The journal features high-quality reviews that have been specifically curated by experts in the field. Topics of particular importance include biomedical applications, organic electronics and photonics, nanostructures, micro- and nano-fabrication, biological molecules (such as DNA, proteins, and carbohydrates), polymers for renewable energy and environmental applications, and interdisciplinary intersections involving polymers.
The articles in Polymer Reviews fall into two main categories. Some articles offer comprehensive and expansive overviews of a particular subject, while others zero in on the author's own research and situate it within the broader scientific landscape. In both types of articles, the aim is to provide readers with valuable insights and advancements in the field of macromolecular science and engineering.
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