【作者】 杨艳平； 沈明贵； 刘鹤； 商士斌； 宋湛谦；

【Author】 Yang Yan-ping;Shen Ming-gui;Liu He;Shang Shi-bin;Song Zhan-qian;Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key and Open Lab. of Forest Chemical Engineering, SFA; Key Lab. of Biomass Energy and Material,Jiangsu Province;Research Institute of Forestry New Technology, CAF;

【机构】 中国林业科学研究院林产化学工业研究所； 生物质化学利用国家工程实验室； 国家林业局林产化学工程重点开放性实验室； 江苏省生物质能源与材料重点实验室； 中国林业科学研究院林业新技术研究所；

【摘要】 以歧化松香为原料,合成了N-脱氢枞基丙烯酰胺单体。在引发剂存在的条件下,以合成的松香基丙烯酰胺单体与环氧大豆油丙烯酸酯(AESO)以不同摩尔比(100:0、90:10、80:20、70:30和60:40)进行共聚反应。通过红外光谱(FT-IR)、差示扫描(DSC)、热重(TG)、动态机械分析(DMA)等方法来表征聚合物的结构和性能。分析显示:混合单体约在130~140℃存在最大放热峰。随着松香摩尔加入量的增加,聚合物的玻璃化转变温度、热稳定性等均有改善。当摩尔比为60:40的聚合物在360℃时开始热分解,最大热分解峰在411℃,聚合物的玻璃化转变温度为45℃,储能模量为1700MPa,损失模量为1500MPa。更多还原

【Abstract】 N-dehydroabietic acrylamide was synthesized by disproportionated rosin as raw materials. In the presence of the initiator, the rosin based acrylamide monomer was copolymerized with AESO using different molar ratio(100:0, 90:10, 80:20, 70:30, 60:40). The structure and performance of polymers was characterized by FT-IR, DSC, TG, DMA and so on. The analysis showed that the maximum exothermic peak of the mixed monomer is about 130~140℃. And with increasing of the molar amount of rosin, the glass transition temperature and thermal stability are all improved. The beginning and the maximum thermal decomposition of the polymer with the molar ratio of 60:40 are at 355℃and 400℃ respectively. The glass transition temperature of the polymer is at 45℃, the storage modulus is 1700 Mpa, and the loss modulus is 1500 Mpa.更多还原