4,4′-二(2,6-二甲基苯氧基)二苯砜、三苯二醚和对苯二甲酰氯三元无规共聚物的合成与表征  

Synthesis and Characterization of Poly(Aryl Ether Ether Ketone Ketone)/Poly (Aryl Ether Sulfone Ether Ketone Ketone) Containing Bis(o-Methyl) Moiety

作　　者：刘勇军[1] 温红丽[1] 宋才生[1] 叶尚辉[1] 钟鸣[1] 刘晓玲[1] 

机构地区：[1]江西师范大学化学化工学院,江西南昌330027

出　　处：《高分子材料科学与工程》2006年第4期64-67,共4页Polymer Materials Science & Engineering

基　　金：国家863计划(2002AA333120);国家自然科学基金(20264001)资助

摘　　要：在无水三氯化铝(A lC l3)和N,N-二甲基甲酰胺(DM F)存在下,以1,4-二苯氧基苯(DPB)、4,4′-二(2,6-二甲基苯氧基)二苯砜(o-M2DPODPS)和对苯二甲酰氯(TPC)为单体,于1,2-二氯乙烷(DCE)中进行低温溶液缩聚反应,合成了一系列共聚物。用IR,DSC,W AXD,TGA等方法对共聚物进行表征和性能测试。研究结果表明,随着o-M2DPODPS含量的增加,共聚物的玻璃化转变温度(Tg)大幅提高,熔融温度(Tm)和结晶度则逐渐减小,溶解性能得到了一定的改善。Poly（aryl ether ether ketone ketone）（PEEKK） is a kind important high-performance polymer due to its excellent thermal stability and other outstanding properties which is similar to PEEK and PEKK. However, the PEEKK＇s insolubility in common solutions and high melt point restrict its processing and applications. In this paper, a series of random copolymers composed of poly （aryl ether ether ketone ketone） （PEEKK）/poly （aryl ether sulfone ether ketone ketone） containing bis（o-metheyl） moiety （DM-PESEKK） were prepared by low temperature solution polycondensation of 4,4＇-bis （2,6-dimethylphenoxy）diphenylsulfone （o-M2DPODPS）, 1,4-dipheoxyl- benzene （DPB） and terephthaloyl chloride （TPC） in 1,2-dichloroethane with the presence of AlCl2 and DMF. The copolymers were characterized by FT-IR, DSC, WAXD, TGA, etc. The results show that glass transition temperature increases greatly with the increasing of the ratio of o- M2DPODPS/DPB, while melting temperature and crystallinity of copolymers decrease. The solubility of the copolymers is improved greatly, while the copolymers still exhibit excellent thermostability.

关 键 词：1 4-二苯氧基苯 4 4’-二(2 6-二基苯氧基)二苯砜 聚芳醚醚酮酮 缩聚 

分 类 号：TB35[一般工业技术—材料科学与工程]