Studies on Thermal, Microbial Behaviours of Copoly(azo-maleimide-Acrylic Acid/Vinyl Acetate) and Terpoly(azo-maleimide-acrylic acid-vinyl acetate): Synthesis and Characterization
作者:Jyoti Chaudhary、Suman Jinger、Swati Purohit、Harshada Joshi
DOI:10.14233/ajchem.2016.19769
日期:——
A terpolymer based on polymerizable monomer unit of N-substituted maleimide associated with azo moiety as a pendent group, acrylic acid and vinyl acetate was chemically architected. The preparation of terpolymer was accelerated by free radical polymerization using AIBN initiator at 70 ± 2 °C in THF solvent. Copolymers of maleimide with acrylic acid/vinyl acetate have also been synthesized, characterized and results were comparatively analyzed with terpolymer. The thermal properties of terpolymer and copolymers such as glass transition temperature (Tg) and thermal decomposition were determined by DSC and TGA analysis respectively. The weight molecular weight (Mw) and number average molecular weight (Mn) were determined by gel permeation chromatography. Density measurement, solubility test, viscosity test, elemental analysis, FT-IR, 1H NMR spectral analysis were used to characterization of terpolymer and copolymers.
以 N-取代马来酰亚胺的可聚合单体单元为基础,结合偶氮分子作为悬垂基团、丙烯酸和乙酸乙烯酯,通过化学方法构建了一种三元共聚物。在 70 ± 2 °C 的四氢呋喃溶剂中使用 AIBN 引发剂进行自由基聚合,加速了三元共聚物的制备。马来酰亚胺与丙烯酸/乙酸乙烯酯的共聚物也已合成、表征,并与三元共聚物的结果进行了比较分析。通过 DSC 和 TGA 分析分别测定了三元共聚物和共聚物的热性能,如玻璃化转变温度(Tg)和热分解。凝胶渗透色谱法测定了重量分子量(Mw)和数均分子量(Mn)。密度测定、溶解性测试、粘度测试、元素分析、傅立叶变换红外光谱、1H NMR 光谱分析用于表征三元共聚物和共聚物。