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Synthesis and characterization of amphiphilic branched silica derivatives associated with oligomeric medium

机译：与低聚介质缔合的两亲性支链二氧化硅衍生物的合成与表征

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Amphiphilic branched silica derivatives associated with oligomeric medium (ASiP) were obtained using tetraethoxysilane, polyoxyethylene glycol and low molecular weight polydimethylsiloxane. The creation of a silica core was based on tetraethoxysilane hydrolysis and condensation reactions by using water and a potassium diethylene glycolate as the catalyst. These reactions proceeded with the sequential participation of polyoxyethylene glycol and polydimethylsiloxane in parallel transetherification reactions. Microporous polymer film based on 2,4-toluene diisocyanate and block copolymers of propylene and ethylene oxides with terminal potassium-alcoholate groups were modified by ASiP. It has been shown that ASiP at the phase interface between thermodynamically incompatible macrochains performs the function of a link. It leads to a significant increase of intermolecular interactions and the supramolecular organization of the modified microporous polymers.
机译：使用四乙氧基硅烷，聚氧乙二醇和低分子量聚二甲基硅氧烷可得到与低聚介质（ASiP）相关的两亲性支链二氧化硅衍生物。二氧化硅核的产生基于四乙氧基硅烷的水解和缩合反应，方法是用水和二甘醇酸钾作为催化剂。这些反应在聚醚乙二醇和聚二甲基硅氧烷顺序参与平行的醚交换反应的过程中进行。通过ASiP改性了基于2,4-甲苯二异氰酸酯和带有末端醇钾基团的丙烯和环氧乙烷的嵌段共聚物的微孔聚合物薄膜。已经显示出在热力学不相容的大链之间的相界面处的ASiP执行链的功能。它导致改性微孔聚合物的分子间相互作用和超分子组织显着增加。

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