Abstract The novel amphiphilic poly(vinyl acrylate)-poly(tert-butyl acrylate) based networks are produced by light-induced photo-initiated radical polymerization between poly(vinyl acrylate) (PVAcr), obtained by using hydroxyl moieties of poly(vinyl alcohol) (PVA), and tert-Butyl acrylate (tBA) monomer. PVA is modified by acryloyl chloride to obtained the corresponding acrylate functionalities (PVAcr). The achieved PVAcr is crosslinked with different amount of tBA (PVAcr:tBA = 0.005:1 and 0.005:2 by mole) to give desired structures (PVAcr-PtBA-1 and PVAcr-PtBA-2) in the presence of 2,2-Dimethoxy-2-phenylacetophenone (DMPA) at λ = 350 nm under nitrogen atmosphere. The structure, wettability, thermal and biodegradability properties of the pristine PVA and achieved networks are evaluated as a function of tBA loading by Fourier transform infrared (FT-IR) spectroscopy, water contact angle (WCA) measurement, thermogravimetric (TGA) and differential scanning calorimetry (DSC) analyses and biodegradation test, respectively. The results indicate that PVAcr-PtBA-2 obtained by higher tBA loading is less hydrophilic and biodegradable, but have improved thermal properties compared to pure PVA, and PVAcr-PVAcr control sample and PVAcr-PtBA-1.

中文翻译：

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光引发自由基聚合交联两亲性聚（丙烯酸乙烯酯）-聚（丙烯酸叔丁酯）的合成、性能和生物降解性

摘要 通过使用聚（乙烯醇）的羟基部分获得的聚（丙烯酸乙烯酯）（PVAcr）之间的光诱导光引发自由基聚合制备了新型两亲性聚（丙烯酸乙烯酯）-聚（丙烯酸叔丁酯）基网络。 ) (PVA) 和丙烯酸叔丁酯 (tBA) 单体。PVA经丙烯酰氯改性得到相应的丙烯酸酯官能团（PVAcr）。获得的 PVAcr 与不同量的 tBA（PVAcr:tBA = 0.005:1 和 0.005:2 摩尔）交联，在 2,2-存在下得到所需结构（PVAcr-PtBA-1 和 PVAcr-PtBA-2）二甲氧基-2-苯基苯乙酮 (DMPA) 在 λ = 350 nm 在氮气气氛下。结构、润湿性、通过傅里叶变换红外 (FT-IR) 光谱、水接触角 (WCA) 测量、热重 (TGA) 和差示扫描量热法 (DSC) 分析，将原始 PVA 和实现的网络的热和生物降解性能评估为 tBA 负载的函数和生物降解试验，分别。结果表明，通过更高 tBA 负载量获得的 PVAcr-PtBA-2 亲水性和生物降解性较差，但与纯 PVA、PVAcr-PVAcr 对照样品和 PVAcr-PtBA-1 相比具有改进的热性能。