文献类型：期刊文献

中文题名：木质素基聚离子液体膜的制备与应用

英文题名：Preparation and Application of Lignin-based Poly(ionic liquid)Membranes

作者：杨思卿[1];许神剑[1];唐卿涵[1];缪涵[1];杨溪[2];林绍梁[1]

机构：[1]华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,上海200237;[2]上海交通大学医学院附属第九人民医院,上海200011

年份：2024

卷号：45

期号：10

起止页码：130

中文期刊名：高等学校化学学报

外文期刊名：Chemical Journal of Chinese Universities

收录：CSTPCD;;EI(收录号：20244317248058);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:001339552100005)】；北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：Supported by the National Natural Science Foundation of China (Nos.52325308, 52203258, 52073092) and the Shanghai Pujiang Program, China (No.21PJ1402100) .

语种：中文

中文关键词：木质素;接枝聚合物;聚离子液体;多孔膜;紫外屏蔽

外文关键词：Lignin;Grafted polymer;Poly(ionic liquid);Porous membrane;UV shielding

摘要：通过原子转移自由基聚合(ATRP)反应制备了不同接枝密度的木质素星形接枝聚丙烯酸共聚物(Ligning-PAA),将Lignin-g-PAA与咪唑鎓聚离子液体(PCMVImTFSI)通过原位静电络合,制备出具有梯度孔结构的木质素基聚离子液体膜(Lignin-PILM).探究了Lignin-g-PAA接枝密度对薄膜的热稳定性、表面形貌和孔径分布的影响,其中,由中度接枝密度的Lignin2-g-PAA_(9)构建的Lignin-PILM存在纳米梯度孔结构,并具有良好的热稳定性.探究了Lignin-g-PAA共聚物含量对薄膜的紫外屏蔽性能的影响,结果表明,Lignin-g-PAA含量越高,薄膜的紫外屏蔽性能和可见光透过率越优异.
Lignin star-shaped grafted poly(acrylic acid)copolymers(Lignin-g-PAA)with different grafting densities were synthesized via atom transfer radical polymerization(ATRP),and then electrostatically complexed in situ with imidazolium-based poly(ionic liquid)(PCMVImTFSI)to prepare lignin-based polyelectrolyte membranes(Lignin-PILM)with gradient pore structures.The influence of grafting density of Lignin-g-PAA on the thermal stability,surface morphology,and pore size distribution of the membrane was investigated.Specifically,Lignin-PILM constructed by Lignin2-g-PAA_(9) with moderate grafting density exhibited a gradient nano-pore structure and excellent thermal stability.Subsequently,the effect of Lignin-g-PAA copolymer content on the UV shielding performance of the membrane was explored.The study revealed that higher Lignin-g-PAA content resulted in superior UV shielding capability and visible light transmittance of the membrane.