高酸解性聚合物的合成及应用

采用常见的芳香二酸(对苯二甲酸和1,4-萘二甲酸)与1,4-二(2-乙烯氧基乙氧基)苯(1,4-DVEB)聚合,得到了2种新型的芳香酯缩醛聚合物,这些聚合物在各种常用溶剂如丙二醇甲醚醋酸酯(PG-MEA)、二氧六环、乙二醇乙醚中有较好的溶解性,分子量(Mn)3 000~5 000,热分解温度都大于230℃,用DSC测得其玻璃化转变温度在60℃左右.这2种酯缩醛聚合物在室温即可酸解,因此可与光产酸剂等组成无需后烘加热的正性化学增幅型感光成像材料,可用于高感度PS版或UV-CTP版感光剂.

The synthesis and application of polymers with high acidolysis activity

By the polymerization reaction between common aromatic diacids（terephthalic acid and 1,4-naphthalic acid） and 1,4-divinyloxyethoxy benzene（1,4-DVEB）,two novel aromatic ester acetal polymers were obtained.The polymers are soluble in common organic solvents such as propylene glycol methyl ether acetate（PGMEA）,dioxane and glycol monoethyl ether.The number-average molecular weights（Mn） of these polymers were measured 3 000 ~ 5 000.The thermal decomposition temperatures of the ester acetal polymers were above 230℃,and the glass transition temperature of them measured by DSC were around 60℃.These two kinds of aromatic ester acetal polymers can be acidolyzed at room temperature.Therefore,chemically amplified positive photolithographic materials can be formed by the polymers and photoacid generator（PAG） that does not need postexposure bake（PEB） and can be used for high photosensitivity PS plate and UV-CTP plate.