PES和PEEK紫外光氧化降解的红外光谱研究  

A FTIR STUDY OF PHOTOOXIDATION AND PHOTODEGRADATION OF PES AND PEEK

作　　者：李明[1] 毛坤元 吴忠文[1] 汤心颐[1] 

机构地区：[1]吉林大学化学系,长春130023

出　　处：《高分子材料科学与工程》1991年第5期70-75,共6页Polymer Materials Science & Engineering

摘　　要：用衰减全反射(ATR)和反射吸收(RA)红外光谱技术,研究了聚醚矾(PES)和聚醚醚酮(PEEK)的紫外光氧化降解反应。结果表明:PES在紫外线照射下明显被氧化,产物中形成大量的羰基和羟基,苯环被破坏生成脂肪链。PEEK也有类似的情况,其共轭的二苯酮结构单元随光照时间增加明显减少,同时有新化学环境的羰基出现,醚或C-O吸收的变化也可看到。The oxidation and degradation of PES and PEEK in UV-light were studied using ATR-and RA-FTIR techniqes.The results show that serious oxidation of PES UV-irradiated occures and a lot of carbonyl and hydroxyl appear as evidenced by broad absorption in both 1650~1800cm-1 and 3100~3600cm-1. So dose PEEK.The unit of CO of PEEK is broken and the other carbonyls and hydroxyls are observed.The radical mechanisms of photooxi-dation and photodegradation of PES and PEEK are suggested

关 键 词：聚醚砜 聚醚醚酮 光氧化 红外光谱 

分 类 号：TQ326.5[化学工程—合成树脂塑料工业]