Blending poly(2-ethyl-2-oxazoline) with hydrophobic polymers as a hybrid adhesive with enhanced water-resistant properties,Journal of Applied Polymer Science

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Blending poly(2-ethyl-2-oxazoline) with hydrophobic polymers as a hybrid adhesive with enhanced water-resistant properties
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-07-16 , DOI: 10.1002/app.51404
Yuanyuan Zhang _{1,

2} , Xuanhua Li _{1,

2} , Shaohui Guo _{1,

2} , Bingqing Wei ₃

Affiliation

The use of poly(2-ethyl-2-oxazoline) (PEOX) in a wet environment is limited because of its high hydrophilicity. In this study, PEOX based blends were prepared via blending PEOX with hydrophobic polymers, such as poly(styrene-co-acrylonitrile) (SAN), poly(4-vinylphenol) (PVPh), and poly(vinylidene fluoride) (PVDF), in order to improve the water-resistance of PEOX. The blends' water resistance properties are evaluated by the contact angle, solubility, moisture absorption, and mechanical strength in a wet environment. The results show that the water resistance and the adhesion strength of PEOX in a wet environment are dramatically enhanced by polymer blending. The blend with 30 wt% PVPh demonstrates excellent performances in transparency and water-resistant abilities. It is found that the stable hydrogen bonding within the blend plays an important role in hydrophobic modification. The PVPh/PEOX blend can be applied as a new type of transparent coating or adhesive with enhanced water-resistant properties in a wet environment.

中文翻译：

将聚（2-乙基-2-恶唑啉）与疏水聚合物混合作为具有增强防水性能的混合粘合剂

聚（2-乙基-2-恶唑啉）（PEOX）由于其高亲水性，在潮湿环境中的使用受到限制。在本研究中，通过将 PEOX 与疏水性聚合物（例如聚（苯乙烯-共-丙烯腈）（SAN）、聚（4-乙烯基苯酚）（PVPh）和聚（偏二氟乙烯）（PVDF））共混来制备基于 PEOX 的共混物，以提高PEOX的耐水性。混合物的防水性能通过接触角、溶解度、吸湿性和潮湿环境中的机械强度进行评估。结果表明，聚合物共混显着提高了PEOX在潮湿环境中的耐水性和粘附强度。与 30 wt% PVPh 的混合物在透明度和防水能力方面表现出优异的性能。发现共混物中稳定的氢键在疏水改性中起重要作用。PVPh/PEOX 混合物可用作新型透明涂层或粘合剂，在潮湿环境中具有增强的防水性能。

更新日期：2021-09-09

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