广州化学2024，Vol.49Issue(2)：1-5,5.DOI:10.16560/j.cnki.gzhx.20240216
POSS基两亲性嵌段共聚物的合成及自组装行为
Synthesis of POSS-based Amphiphilic Block Copolymers and Their Self-assembly Behavior
摘要
Abstract
Epoxy-based phenyl polyhedral oligomeric silsesquioxanes(POSS)were synthesized by hydrolytic condensation using different structures of triethoxysilanes as raw materials,and then POSS-based block copolymers(PEA-POSS)were synthesized by reaction of the amine group and epoxy ring-opening reaction with the polyether amine(PEA),and finally amphiphilic block copolymers(PEA-POSS-COOH)were synthesized by carboxylating the phenyl structure.The structural compositions of PEA-POSS-COOH were characterized using Fourier-transform infrared(FT-IR)and nuclear magnetic resonance hydrogen spectroscopy(1H-NMR).The PEA-POSS-COOH were self-assembled to form spherical micelles with hydrophobic POSS as the cores and hydrophilic PEA chains as the shell by the solvent evaporation-induced method.The morphology and structure properties of the assemblies were investigated by scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDS),dynamic light scattering(DLS),small-angle X-ray scattering(XRD),and differential scanning calorimetry(DSC).These results show that the POSS-based amphiphilic block polymers can be assembled into spherical micellar structures with a particle size of about 1.14 μm,and the π-π stacking effect in the POSS structure makes the spherical micelles have a more stable structure with an increased melting point.关键词
笼型倍半硅氧烷/聚醚胺/有机/无机纳米杂化材料/自组装/球形胶束Key words
polyhedral oligomeric silsequioxane(POSS)/polyether amine/organic/inorganic nanohybrid material/self-assembly/spherical micelle分类
化学化工引用本文复制引用
李东霞,薛雨欣,孙祥峰,桂雪峰,许凯..POSS基两亲性嵌段共聚物的合成及自组装行为[J].广州化学,2024,49(2):1-5,5.基金项目
中国科学院科技服务网络计划(No.20211600200052) （No.20211600200052）
