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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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新型可聚合蒽醌染料单体及其共聚物乳液的制备及性能
DOI: 10.3724/SP.J.1105.2013.13099, PP. 1445-1452
Keywords: 可聚合蒽醌染料,乳液聚合,稳定性,光色牢度
Abstract:
通过多步有机反应合成了新型蒽醌染料单体1-(间(2-(2-(丙烯酰氧基)乙氧基)乙基砜基)苯胺基)蒽醌(AVSAQ),对其化学结构进行了表征;然后将其与苯乙烯(St)、丙烯酸丁酯(BA)和甲基丙烯酸(MAA)进行半连续乳液共聚合,制备出了共价键合型P(St-BA-MAA-AVSAQ)橙红色聚合物乳液,并对乳液以及乳胶膜的性能进行了表征,系统考察了AVSAQ和过硫酸铵(APS)用量对单体总转化率以及乳液胶体性质的影响.结果表明,当AVSAQ用量不高于单体总量的4.0wt%、APS用量不低于单体总量的0.5wt%时,聚合反应可以平稳进行,所得乳胶粒水合粒径均在60nm左右.总单体转化率和AVSAQ转化率随着AVSAQ用量的增加而降低,当AVSAQ用量达到4.0wt%时,二者分别为95.0%和93.6%.P(St-BA-MAA-AVSAQ)的UV-Vis吸收光谱特性与AVSAQ完全一致,最大吸收波长均为486.8nm.与相应非共价键合型橙红色聚合物乳液相比,P(St-BA-MAA-AVSAQ)聚合物乳液具有良好的储存稳定性和保色性,乳胶膜的光色牢度和耐溶剂牢度也显著提高.
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