摘要
完全交替的聚碳酸亚环己酯可用作微电子牺牲材料,文中用水杨醛,邻苯二胺和叔丁醇铝制备了SalenAlOC(CH3)3,以N,N-二甲胺基吡啶(DMAP)作为共催化剂催化二氧化碳和氧化环己烯共聚,用核磁共振(1H-NMR)对共聚产物进行了结构分析。结果表明,催化效率最高可达494 g Polym/g Cat,共聚产物中的碳酸酯键含量为99.9%,-Mn=30300 g/mol,分子量分布PDI=1.46;与SalenAl(OiPr)相比,SalenAlOC(CH3)3得到交替度大于99%的共聚产物的反应条件更宽,更加容易控制。
The highly alternating poly（cyclohexene carbonate） exhibits excellent thermal decomposition properties and potentially be applied in the field of microelectronics sacrificial material.SalenAlOC（CH3）3 complex was prepared by a reaction of N,N′-Bis（salicylidene）-1,2-phenylenediamine and alumiunium tert-butoxide and used as an effective catalyst for the copolymerizaion of carbon dioxide and cyclohexene oxide（CHO） to get highly alternating poly（cyclohexene carbonate）.Reaction conditions such as catalyst concentration,temperature,time and pressure on copolymers were discussed in detail.Poly（cyclohexene carbonate） with 99.9% carbonate content was obtained in a copolymerization of 80 ℃,4 MPa CO2 pressure,using 2.5 g/L SalenAlOC（CH3）3 for 32 h.The highest catalytic efficiency reached 412 g polym/g Cat.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2011年第5期5-8,共4页
Polymer Materials Science & Engineering
基金
广东省自然科学基金资助项目(9151065004000005)
广东省工业攻关项目(2008B010600046)
