涤纶催化织物的制备及其在醚合成反应中的应用  

Preparation of supported polyester fabrics and their application in ether synthesis reaction

作　　者：彭卉 赵强强 杨雷[1,2] 沈一峰[1,2] PENG Hui;ZHAO Qiangqiang;YANG Lei;SHEN Yifeng(College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310018,Zhejiang,China;Engineering Research Center for Eco-Dyeing&Finishing of Textiles,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou 310018,Zhejiang,China;College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China)

机构地区：[1]浙江理工大学纺织科学与工程学院(国际丝绸学院),浙江杭州310018 [2]浙江理工大学生态染整技术教育部工程研究中心,浙江杭州310018 [3]东华大学化学化工与生物工程学院,上海201620

出　　处：《精细化工》2020年第11期2287-2293,共7页Fine Chemicals

基　　金：国家自然科学基金青年基金(21606206);中央高校基本科研业务费专项资金(2232020G-04)。

摘　　要：以五元丙烯酸酯共聚物为改性剂,涤纶织物为载体,通过浸轧整理制备了负载型涤纶相转移催化织物,分析了催化织物在Williamson醚合成反应中的催化性能与反应机理,考察了整理工艺、改性剂结构、改性剂负载量对催化活性的影响。结果表明,磷酸与甘油可提升改性剂分子的交联程度,从而提高催化织物的稳定性;改性剂中长链烷基酯为甲基丙烯酸十八烷基酯、阳离子单体为甲基丙烯酰胺丙基二甲基丁基溴化铵、阳离子单体摩尔分数为13.20%、负载量为20%时,织物催化活性最佳;催化织物可吸附油相于其表面,随后引发离子交换、成键反应;其应用于不同苯酚衍生物的Williamson醚合成反应,转化率均在92%以上,催化织物使用11次后仍具有较高的催化活性。Supported phase transfer catalytic polyester fabrics were prepared by dip-rolling with five component acrylate copolymers as modifiers and polyester fabric as carrier.The catalytic performance and reaction mechanism of catalytic fabrics for Williamson ether synthesis reaction were analyzed.The effects of finishing technology,structure and loading amount of modifier on the catalytic activity were investigated.The results showed that phosphoric acid and glycerin could improve the crosslinking degree of copolymer molecules,thus improving the catalytic stability of catalytic fabric.The modified fabric had excellent catalytic activity when length of hydrophobic chain ester was octadecyl methacrylate,cationic monomer was methylacrylamide propyldimethylbutylammonium bromide,molar fraction of cationic monomer was 13.20% and loading amount was 20%.The oil phase was adsorbed on the surface of the catalytic fabric,and the ion-exchange and bonding reactions were initiated.The catalytic fabric was used in Williamson ether synthesis reaction of different phenol derivatives,and all conversions could be over 92%.The catalytic fabric still exhibited high catalytic activity after 11 times of use.

关 键 词：催化剂固定化 Williamson醚合成反应 相转移催化 丙烯酸酯共聚物 催化织物 

分 类 号：TS195.6[轻工技术与工程—纺织化学与染整工程]