DCC法合成端羟基超支化聚酯  

Synthesis of Hydroxyl-terminated Hyperbranched Polyester by DCC Method

作　　者：张豪跃 刘肖梦 钟译瑱 冯好胜 赵燕熹[1] 黄涛[1] ZHANG Haoyue;LIU Xiaomeng;ZHONG Yitian;FENG Haosheng;ZHAO Yanxi;HUANG Tao(Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science,South-Central Minzu University,Wuhan 430074,China)

机构地区：[1]中南民族大学,催化转化与能源材料化学教育部重点实验室暨催化材料科学湖北省重点实验室,湖北武汉430074

出　　处：《化学与生物工程》2023年第7期6-10,共5页Chemistry & Bioengineering

基　　金：国家自然科学基金项目(21273289);中央高校基本科研业务费专项资金项目(CZZ20002)。

摘　　要：以三羟甲基丙烷(TMP)为核分子、2,2-二羟甲基丙酸(DMPA)为聚合单体、N,N′-二环己基碳二亚胺(DCC)为脱水剂、N,N-二甲基甲酰胺(DMF)为溶剂,采用一步法合成了结构规整的二代端羟基超支化聚酯(HBP-OH),通过红外光谱(FTIR)、热重(TG)和基质辅助激光解吸飞行时间质谱(MALDI-TOF-MS)对其结构进行表征,探究缩合反应条件对HBP-OH合成的影响。结果表明,最佳缩合反应条件如下:DCC溶液注入速度为1 mL·h^(-1)、反应时间为4 h、n(TMP)∶n(DMPA)∶n(DCC)为1∶9∶9,在此条件下,HBP-OH产率为89%。Taking trimethylolpropane(TMP)as a nuclear molecule,2,2-dimethylolpropionic acid(DMPA)as a polymeric monomer,N,N′-dicyclohexylcarbodiimide(DCC)as a dehydrating agent,and N,N-dimethylformamide(DMF)as a solvent,we synthesized the structured second-generation hydroxyl-terminated hyperbranched polyester(HBP-OH)by a one-step method.Moreover,we characterized the structure of HBP-OH by FTIR,TG,and MALDI-TOF-MS,and explored the influence of condensation reaction conditions on synthesis of HBP-OH.The results show that the optimal condensation reaction conditions can be determined as follows:the addition rate of DCC solution is 1 mL·h^(-1),the reaction time is 4 h,and n(TMP)∶n(DMPA)∶n(DCC)is 1∶9∶9.Under above conditions,the yield of HBP-OH can reach 89%.

关 键 词：N N′-二环己基碳二亚胺 三羟甲基丙烷 2 2-二羟甲基丙酸 超支化聚酯 

分 类 号：TQ317[化学工程—高聚物工业]