摘要
以丙三醇作为起始剂,三溴苯酚缩水甘油醚、环氧氯丙烷及环氧丙烷为共聚单体,以三氟化硼/四氢呋喃为催化剂合成的阻燃聚醚多元醇作原料,与亚磷酸三甲酯进行酯交换反应和Arbuzov重排反应,合成了新型聚醚多元醇膦酸酯/亚磷酸酯(PEPP)。通过元素分析和IR及1HNMR等分析方法对其化学结构进行了表征。考察了反应物料比对多元醇(HIROL-II)的性能和PEPP应用性能的影响。试验结果表明,适宜的环氧丙烷/环氧氯丙烷/三溴苯酚缩水甘油醚物质的量比是6∶1 1∶1,用23%PEPP制备的聚氨酯泡沫氧指数为31。PEPP是一种热稳定性高、阻燃效果好,同时兼有增塑剂和抗氧剂功能的新型橡塑助剂。
The flame retardant polyether phosphonate/phosphite(PEPP)was synthesized by ester exchange and Arbuzov rearrangement reaction from trimethylphosphite and flame retardant polyether polyol(HIROLⅡ)prepared using glycerol as initiation,tribromophenyl glycidyl ether as flame retardant row material,epichlorohydrin and 1,2-epoxypropane as cocondensation monomer and boron trifluoride/tetrahydrofuran as catalyst. Molecular structure of the product was determined by IR \+1 HNMR and element analyst.The effect of row material mole rate on the propertics of HIROLⅡ and applied characteristics of PEPP was discussed.The results indicated that the suitable row material mole rate was 6∶11∶1(epoxy-propane/epoxychloropropane/tribromophenyl glycidyl ether),OI of soft PU foam was 31,which was prepared with 23% PEPP and PEPP was new rubbery plastic assistant with multifunctions such as heat resistance,flame retardance,resistance to oxidation and plasticization.
出处
《热固性树脂》
CAS
CSCD
2003年第5期5-8,共4页
Thermosetting Resin
基金
江苏省"青蓝工程"资助项目(QK00200104)
关键词
聚醚多元醇亚磷(膦)酸酯
三溴苯基缩水甘油醚
阻燃剂
氧指数
flame retardance
polyether polyol phosphonate/phosphite
tribromophenyl glycidyl ether
soft PU foam
oxygen index
