4.6 Article

PVA-Polystyrene-Based Polymer Films with Water-Induced ShapeMemory Effect

期刊

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 61, 期 17, 页码 5797-5806

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.1c04812

关键词

-

资金

  1. Council of Scientific & Industrial Research (CSIR), India

向作者/读者索取更多资源

In this study, a series of novel water-induced shape memory composite films based on poly(vinyl alcohol)-polystyrene (PVA-PSX) were prepared using a one-pot in situ polymerization method. The resulting films showed high mechanical strength and water-induced shape memory behavior, with the PVA-PS3 film demonstrating the fastest shape recovery rate. The desirable properties of the PVA-PSX composite film make it a suitable candidate for packaging materials in the food and cosmetic industries.
In this work, a series of novel water-induced shapememory composite films are prepared on the basis of poly(vinyl alcohol)-polystyrene (PVA-PSX) through one pot in situ polymerization method. The neat PVA film is modified to PVA-PSX film by loading calibrated amount of styrene, and the resulted film exhibits high mechanical strength (tensile strength similar to 40 MPa, tensile strain similar to 315%, Young's modulus similar to 0.25 MPa and toughness similar to 5 MJ/m3 ). More importantly, water-induced shape-memory behavior is observed for the PVA-PSX composite films and among various proportions, PVA-PS3 film (3 v/v% of styrene content) shows the fastest shape recovery rate (160 s). The relative low value of storage modulus and glass transition temperature of the PVA-PS3 films is attributed to water-induced shape recovery. The desirable and multifaceted properties of the PVA-PSX composite film, such as optimum transparency, improved water resistance, enhanced shape recovery, diminished UV-light transmission, and effectual antimicrobial activity, propound that the composite film is a suitable candidate for preparing packaging materials in food and cosmetic industries.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据