CAJ | 학술논문

以乙酰磺酸酯为磺化剂,对不同内相比的高内相比乳液聚合所得多孔聚合物块体( polyHIPEs)进行磺化改性处理,通过傅立叶变换红外光谱( FT-IR)、电导滴定、紫外-可见-近红外分光光度计等对磺化产物及其吸附性能进行了表征。结果表明,polyHIPEs已被成功磺化,磺化后块体表面的亲水亲油性发生了明显的变化,其吸水性明显增强,而吸油性明显减弱。由于引入了带负电荷的磺酸基团(-SO3 H),其对正离子或带正电荷的分子(如亚甲基蓝染料)具有较强的吸附性能。同时,磺化后的块体具有一定的pH敏感性。
이을선광산지위광화제,대불동내상비적고내상비유액취합소득다공취합물괴체( polyHIPEs)진행광화개성처리,통과부립협변환홍외광보( FT-IR)、전도적정、자외-가견-근홍외분광광도계등대광화산물급기흡부성능진행료표정。결과표명,polyHIPEs이피성공광화,광화후괴체표면적친수친유성발생료명현적변화,기흡수성명현증강,이흡유성명현감약。유우인입료대부전하적광산기단(-SO3 H),기대정리자혹대정전하적분자(여아갑기람염료)구유교강적흡부성능。동시,광화후적괴체구유일정적pH민감성。
A series of polymerized high internal phase emulsions( polyHIPEs) monoliths with different internal phase were sulfonated by acetyl sulfonate. The products and their absorption properties of the monoliths were characterized by FT-IR,conductometric titra-tion,UV-vis-NIR spectrophotometer,etc. The results indicate that polyHIPEs were sulfonated successfully,leading to the surface of the monoliths changed from lipophilic to hydrophilic obviously,thus,the water absorption significantly enhanced,but oil absorption weakened distinctly. Due to the presence of-SO3 H groups with negative charge,the sulfonated monoliths exhibited strong absorption ability to positive ions or positively charged molecules,such as methylene blue dye. In addition,polyHIPEs after sulfonation showed a certain sensitivity to pH value.