摘要
在水溶液中制备了酚醛树脂与重氮盐 (PR DS)和重氮树脂 (PR DR)的复合物 .与重氮盐或重氮树脂同时加入硫酸成功地抑制了重氮基与酚醛树脂的偶联反应 .复合物PR DR在有机溶剂中的溶解度大于PR DR ,其在DMF中的溶解度可达到 4.46% .两种复合物都具有很高的光敏性 .在紫外光照下 ,PR DR的离子键将转化为共价键从而不溶于DMF ,因而可用作光成像材料 .
Complexes of phenolic resin and diazonium salt (PR-DS)or diazo resin(PR-DR) were prepared in aqueous solution. The coupling reaction between PR and DS(or DR) was suppressed successfully by addition of H_2SO_4 together with DS(or DR). The PR-DS dissolves in organic solvents is easier than PR-DR. The dissolution of PR-DS in DMF at room temperature reaches about 4.46%. Both complexes exhibit high photosensitive behaviors. Under irradiation of UV light, PR-DR changes its crosslinking structure from ionic bond to covalent bond and becomes insoluble in DMF. This character can be used in practice as a photo-imaging material.\;
出处
《感光科学与光化学》
EI
CSCD
2000年第2期165-169,共5页
Photographic Science and Photochemistry
基金
国家自然科学基金!资助项目 ( 5 963 3 110 )
