聚醚酮酮/4,4′-双(β-萘氧基)二苯砜多嵌段共聚物的合成与表征  

Synthesis and Characterization of Polyether Ketone Ketone/4,4′-Bis(β-naphthoxy)diphenylsulfone Multiblock Copolymers

作　　者：黎苇[1] 胡荣华[1] 蔡明中[1] 

机构地区：[1]江西师范大学化学学院

出　　处：《化学通报》2003年第6期410-412,409,共4页Chemistry

基　　金：国家自然科学基金 ( 2 90 6 0 0 10 );江西省自然科学基金 ( 0 2 5 0 14 )资助项目

摘　　要：通过酰氯端基聚醚酮酮 (PEKK)低聚物和 4,4′ 双 ( β 萘氧基 )二苯砜 (BNODPS)的溶液缩聚反应 ,制备了不同BNODPS含量的PEKK BNODPS多嵌段共聚物系列样品。用IR、DSC、TGA、WAXD等方法对共聚物进行了表征和性能测试。结果表明 ,随着共聚物中BNODPS含量的增加其玻璃化转变温度(Tg)逐渐升高 ,而其熔融温度 (Tm)则逐渐降低。与对苯基PEKK相比 ,共聚物具有较高的Tg 和较低的Tm 。A series of multiblock copolymers composed of polyether ketone ketone(PEKK) and 4,4′ bis ( β naphthoxy)diphenylsulfone(BNODPS) were synthesized by polycondensation of acyl chloride\|terminated PEKK oligomers and 4,4′ bis ( β naphthoxy)diphenylsulfone. The copolymers were characterized by IR, DSC, TGA, WAXD etc. The results indicate that the T g of the copolymers increases with increasing BNODPS content and the T m of the copolymers decreases with increasing BNODPS content. Compared with the para\|linked pure PEKK, the copolymers have higher T g and lower T m. The PEKK/BNODPS multiblock copolymers have very good thermal property and chemical resistant property.

关 键 词：聚醚酮酮 4 4′-双(β-萘氧基)二苯砜 多嵌段共聚物 合成 

分 类 号：TQ326[化学工程—合成树脂塑料工业]