摘要
通过酚醛树脂羟基活性基团与 6-氯 -5 ,1 2 -萘并萘醌 ( 1 )接枝反应 ,制备了 3种有光致变色性的酚醛树脂 :萘并萘醌酚醛树脂 ( 2 ) ,甲基萘并萘醌酚醛树脂 ( 3 )和氯代萘并萘醌酚醛树脂 ( 4 ) .在四氢呋喃 ( THF)溶液中 ,3种光致变色聚合物有与 6-苯氧基 -5 ,1 2 -萘并萘醌相似的光致变色行为 .同时 ,发现聚合物骨架上的取代基对聚合物的变色速度影响较小 ,聚合物的平均分子量影响聚合物的变色速度 .
Three naphthacenequinone photochromic phenolic resins, naphthacenequinone phenolic resin(2), methyl-naphthacenequinone phenolic resin(3) and chloro-naphthacenequinone phenolic resin(4) were synthesized by an one-step method, i.e. the reaction between 6-chloro-5,12-naphthacenequinone(1) and phenolic resins. The polymers have similar photochromic properties in THF solution with photochromic compound 6-phenoxy-5,12-naphthacenequinone. It was found that the substituents attaching to the main chain backbone of the polymer have a slight effect on the reaction and rate of photoisomerization of polymers. The rate constants were influenced by the molecular weight.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第9期1740-1742,共3页
Chemical Journal of Chinese Universities
基金
吉林省教育厅基金 (批准号 :2 0 0 2 -6)资助
关键词
萘并萘醌
酚醛树脂
光致变色
光异构化
Naphthacenequinone
Phenolic resin
Photochromism
Photoisomerization
