基于金刚烷笼状结构接枝的丙烯酸树脂的制备与性能  

Preparation and properties of acrylic resin grafted by cage structure for adamantane

作　　者：李再峰[1] 王晓环[1] 胡晓云[1] 李翠苹[1] 蒋玉湘[1] 

机构地区：[1]生态化工国家重点实验室培育基地青岛科技大学,山东青岛266042

出　　处：《弹性体》2016年第5期1-5,共5页China Elastomerics

基　　金：国家自然科学基金项目(21176126);山东省自然科学基金资助项目(ZR2013EMM007)

摘　　要：采用低聚物二元醇和甲苯二异氰酸酯(TDI)反应制备出预聚体,然后用1,3-金刚烷二醇扩链,残余的异氰酸酯官能团被甲基丙烯酸羟乙酯(HEMA)反应封端,合成出新型金刚烷笼状结构改性的长链交联剂。以金刚烷改性交联剂、甲基丙烯酸十八酯(SMA)和甲基丙烯酸丁酯(BMA)为原料制备出金刚烷接枝的丙烯酸树脂,研究了金刚烷结构及用量对树脂吸油性能及耐热性能的影响。当金刚烷改性的交联剂质量分数为33%时,丙烯酸树脂表现出最好的吸油性能。采用差示扫描量热法(DSC)、热失重(TG)、红外光谱(FT-IR)对改性树脂的结构与性能进行了表征和分析。结果表明,金刚烷有效地实现了对丙烯酸树脂的结构改性,丙烯酸树脂的最快分解温度从330℃升高到400℃,增加了其热稳定性。The PU prepolymer was prepared by the reaction of polyol with the NCO group from TDI,and then the prepolymer was extended by 1,3-adamantanediol,and a novel prepolymer with cage structure was obtained.A novel long-chained cross-linking agent modified with cage structure was synthesized by the reaction of hydroxyl from the 2-hydroxyethyl methacrylate（HEMA）monomer with the prepared prepolymer.Acrylic resin with adamantane cage structure was synthesized by free radical polymerization of the novel long-chain cross-linking agent,stearyl methylacrylate and butyl methacrylate monomer.The effect of the content of adamantane on oil absorbency and thermal endurance was studied respectively.When content of cross-linking agent modified by adamantane was about 33%,the resin showed the best oil absorbency.The structure and properties of resin were analyzed by means of DSC,TG and FT-IR.The results showed that thermal endurance for acrylic resin was improved by adamantane cage structure effectively.The fastest decomposition temperature of the titled acrylic resin increased from 330℃to 400℃,and its thermal stability increased significantly.

关 键 词：丙烯酸酯 金刚烷 耐热性 改性 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]