4-乙烯基苯硼酸聚合物纳米材料的制备及其在果糖检测中的应用  

Preparation of Poly(4-Vinylphenylboronic Acid)Nanomaterial and Its Application in Fructose Detection

作　　者：李涛 张睿 聂玘豪 吴浩君 王欣惠 吴海彤 孙晓丽 LI Tao;ZHANG Rui;NIE Qihao;WU Haojun;WANG Xinhui;WU Haitong;SUN Xiaoli(School of Environmetal Science and Engineering,Fujian Normal University,Fuzhou 350007,China)

机构地区：[1]福建师范大学环境科学与工程学院,福建福州350007

出　　处：《聊城大学学报（自然科学版）》2022年第4期83-89,共7页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目(21801251);福建省自然科学基金项目(2021J01199)资助。

摘　　要：采用可逆加成-断裂链转移聚合(RAFT)和溶液自组装方法制备了聚(4-乙烯基苯硼酸)-b-聚(N,N-二甲基丙烯酰胺)嵌段共聚物和含苯硼酸基团的核壳结构球形纳米材料,具有100 nm和200 nm两种尺寸。在水环境中,苯硼酸基团能与染料茜素红、槲皮素、8-羟基喹啉结合产生荧光,从而构建了新型荧光传感器。其中,PVPBA_(315)-b-PDMA_(90)/QC荧光传感器遇到果糖时发生明显的荧光淬灭现象,可以特异性地检测果糖,在果糖浓度为0~82.5 mmol/L范围内,其荧光强度呈现线性淬灭,检测限低至60 nmol/L。Reversible addition-fragmentation chain transfer(RAFT)polymerization were used to prepare block copolymer PVPBA-b-PDMA and then two core-shell spherical nanomaterials containing phenylboronic acid groups with the diameter of 100 nm and 200 nm were obtained via solution self-assembly methods.In the aqueous environment,the phenylboronic acid group on the corona of nanomaterials could reversibly combine with the dyes,such as Alizarin Red,Quercetin,and 8-Hydroxyquinoline,to produce fluorescence,and three fluorescent sensors were constructed.Among them,PVPBA_(315)-b-PDMA_(90)/QC shows the fluorescence quenching phenomenon with the addition of fructose,and the fluorescence sensor could specifically detect fructose.In the range of fructose concentration of 0-82.5 mmol/L,the fluorescence intensity decreases linearly and its detection limit is as low as 60 nmol/L.

关 键 词：4-乙烯基苯硼酸 聚合物纳米材料 自组装 果糖 荧光传感器 

分 类 号：O634.3[理学—高分子化学]