研究了以3,5-二叔丁基-4-羟基-苯甲酸和2,4-二叔丁基苯酚为原料,SOCl2为酰化试剂,一锅法合成光稳定剂3,5-二叔丁基-4-羟基-苯甲酸-2,4-二叔丁基苯基酯的工艺.通过实验考察了投料比、温度及酰化试剂用量对反应的影响,确定了较佳的工艺条...研究了以3,5-二叔丁基-4-羟基-苯甲酸和2,4-二叔丁基苯酚为原料,SOCl2为酰化试剂,一锅法合成光稳定剂3,5-二叔丁基-4-羟基-苯甲酸-2,4-二叔丁基苯基酯的工艺.通过实验考察了投料比、温度及酰化试剂用量对反应的影响,确定了较佳的工艺条件:3,5-二叔丁基-4-羟基-苯甲酸与2,4-二叔丁基苯酚的物质的量比为1∶1.1;酰化剂SOCl2与3,5-二叔丁基-4-羟基-苯甲酸的物质的量比为1.2∶1;反应温度为70℃;反应时间为11 h.还考察了结晶溶剂的种类、用量和温度对产品质量和收率的影响,得到了较佳的结晶工艺条件:V(正丁醇)/m(初产物)为1.4 m L/g;结晶温度为25℃.产品总收率可达83.0%.展开更多
Transition metal carbides/nitrides/carbonitrides,commonly referred to as MXenes,have gained widespread attention since their discovery in 2011 as a promising family of two-dimensional(2D)materials.Their impressive che...Transition metal carbides/nitrides/carbonitrides,commonly referred to as MXenes,have gained widespread attention since their discovery in 2011 as a promising family of two-dimensional(2D)materials.Their impressive chemical,electrical,thermal,mechanical,and biological properties have fueled a surge in research focused on the synthesis and application of MXenes in various fields,including membranebased separation.By engineering the materials and membrane structures,MXene-based membranes have demonstrated remarkable separation performance and added functionalities,such as antifouling and photocatalytic properties.In this review,we aim to have a timely and critical review of research on their fabrication strategy and performance in advanced molecular separation and ion exchange,beginning with a brief introduction of the preparation and physicochemical properties of MXenes.Finally,outlooks and future works are outlined with the aims to provide valuable insights and guidance for advancing membranes'applications in different separation domains.展开更多
文摘研究了以3,5-二叔丁基-4-羟基-苯甲酸和2,4-二叔丁基苯酚为原料,SOCl2为酰化试剂,一锅法合成光稳定剂3,5-二叔丁基-4-羟基-苯甲酸-2,4-二叔丁基苯基酯的工艺.通过实验考察了投料比、温度及酰化试剂用量对反应的影响,确定了较佳的工艺条件:3,5-二叔丁基-4-羟基-苯甲酸与2,4-二叔丁基苯酚的物质的量比为1∶1.1;酰化剂SOCl2与3,5-二叔丁基-4-羟基-苯甲酸的物质的量比为1.2∶1;反应温度为70℃;反应时间为11 h.还考察了结晶溶剂的种类、用量和温度对产品质量和收率的影响,得到了较佳的结晶工艺条件:V(正丁醇)/m(初产物)为1.4 m L/g;结晶温度为25℃.产品总收率可达83.0%.
基金Zhejiang Outstanding Youth Fund(LR22E080007)the National Natural Science Foundation of China(52070170,51978628,and 52300112)+1 种基金Zhejiang Provincial Ten Thousand Talent Program(ZJWR0302055)Natural Science Foundation of Zhejiang Province(LQ23E080008)。
文摘Transition metal carbides/nitrides/carbonitrides,commonly referred to as MXenes,have gained widespread attention since their discovery in 2011 as a promising family of two-dimensional(2D)materials.Their impressive chemical,electrical,thermal,mechanical,and biological properties have fueled a surge in research focused on the synthesis and application of MXenes in various fields,including membranebased separation.By engineering the materials and membrane structures,MXene-based membranes have demonstrated remarkable separation performance and added functionalities,such as antifouling and photocatalytic properties.In this review,we aim to have a timely and critical review of research on their fabrication strategy and performance in advanced molecular separation and ion exchange,beginning with a brief introduction of the preparation and physicochemical properties of MXenes.Finally,outlooks and future works are outlined with the aims to provide valuable insights and guidance for advancing membranes'applications in different separation domains.
