详细信息
文献类型:期刊文献
中文题名:聚己内酯型聚羟基氨基甲酸酯的合成
英文题名:Synthesis of Poly Hydroxyurethanes Based on Poly(Caprolactone)
作者:陆跃[1];饶炬[1];龚飞荣[1];陈建定[1]
机构:[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室,上海200237
年份:2013
卷号:47
期号:5
起止页码:827
中文期刊名:上海交通大学学报
外文期刊名:Journal of Shanghai Jiaotong University
收录:CSTPCD;;EI(收录号:20132616454168);Scopus;北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;
语种:中文
中文关键词:聚己内酯;五元环碳酸酯;聚羟基氨基甲酸酯
外文关键词:poly (caprolactone) ; five-membered cyclic carbonate;polyhydroxyurethane
摘要:以聚己内酯二元醇(PCL-Diol)、丁二酸酐以及碳酸甘油酯为原料,合成了端基为五元环碳酸酯的聚己内酯功能性大单体(PCL-2GC);以PCL-2GC、己二胺及硅烷偶联剂为原料,研究了反应条件对合成线性聚羟基氨基甲酸酯(PHU)相对分子质量及其分布的影响,以及交联密度和交联方式对PHU/SiO2热力学性能的影响.结果表明:线性PHU的相对分子质量随PCL-2GC浓度和反应温度的升高而先增后减,随反应时间、胺用量的增大而降低;PHU的耐热温度相比于类似结构的传统聚氨酯提高了30~40℃,PHU/SiO2交联聚合物的结晶度及热稳定性随交联密度的增大而降低;交联聚合物中无定形SiO2的分布较为均匀.
Functionalized poly (caprolactone) diol (PCL-Diol) end capped with five-membered cyclic car- bonate (PCL-2GC) was synthesized from PCL-Diol, succinic anhydride and glycerol 1, 2-carbonate. The relative molecular mass and its distribution of linear polyhydroxyurethanes (PHU) prepared from the reac- tion of PCL-2GC with 1,6-hexanediamine decrease as the reaction time and the dosage of amine increase, while first increase with increasing PCL-2GC concentration and reaction temperature and then decrease. The heat-resistance temperature of PHU is 30 40 ℃ higher than traditional polyurethane with analogous structure. The crystallization and thermal stability of crosslinked PHU/SiO2 polymers decrease with the increase of crosslink density. The amorphous SiO2 is homodispersed in the matrix of PHU/SiO2 polymers characterized from X-ray diffraction (XRD) and scanning electron microscope (SEM).
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