骆小伟, 李国明, 高回春, 刘聪. 热固性聚丙烯酸酯树脂的合成与表征[J]. 华南师范大学学报(自然科学版), 2009, 1(3): 84-87 .
引用本文: 骆小伟, 李国明, 高回春, 刘聪. 热固性聚丙烯酸酯树脂的合成与表征[J]. 华南师范大学学报(自然科学版), 2009, 1(3): 84-87 .
Liu-cong, . SYNTHESIS AND CHARACTERIZATION OF CROSSLINKING ACRYLATE COPOLYMERS[J]. Journal of South China Normal University (Natural Science Edition), 2009, 1(3): 84-87 .
Citation: Liu-cong, . SYNTHESIS AND CHARACTERIZATION OF CROSSLINKING ACRYLATE COPOLYMERS[J]. Journal of South China Normal University (Natural Science Edition), 2009, 1(3): 84-87 .

热固性聚丙烯酸酯树脂的合成与表征

SYNTHESIS AND CHARACTERIZATION OF CROSSLINKING ACRYLATE COPOLYMERS

  • 摘要: 本文以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)、甲基丙烯酸羟乙酯(HEMA)、丙烯酸(AA)为原料,过氧化二苯甲酰(BPO)为引发剂,二甲苯、醋酸丁酯作溶剂,采用溶液聚合法合成聚丙烯酸酯预聚体。讨论了反应体系、温度、引发剂用量等因素对聚丙烯酸酯预聚体的分子量及其分布的影响,确定了最佳合成工艺;然后用环氧树脂和邻苯二甲酸酐作为固化剂固化,得到了附着力好,耐水性优异的聚合物涂膜,通过凝胶渗透色谱仪(GPC)、热失重分析仪(TG)、示差扫描量热分析仪(DSC)等对聚丙烯酸酯预聚体及其涂膜的分子量大小及其分布、热稳定性、玻璃化转变温度等进行了研究;GPC测得聚丙烯酸酯预聚体的 =6094, =12101,分子量分布为系数1.9,DSC测得聚合物涂膜玻璃化转变温度为27.8℃,TG测得当聚合物涂膜质量损失20%时温度为378.59℃。

     

    Abstract: Using methylmethacrylate(MMA),butylacrylate(BA), acrylicacid and hydroxyethylmethacrylate(HEMA) as raw materials, BPO as initiator,dimethylbenzene and ethylacetate as solvent, a series of polyacrylic resins(PAR) were synthesized by solution free radical polymerization technique,and were studied in various conditions, such as the process of synthesis,the reaction temperature,and the amouts of initiator.The gel permeation chromatography(GPC)result showed that the molecular weight distribution coefficient of PAR was 1.9,The thermal gravimetric showed that it was at 378.59℃ when PARs mass lost 20%,The differential scanning calorimetry(DSC)test showed that the glass transition temperature was 27.8℃.

     

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