二茂铁改性硅氧烷气凝胶

IF 1.4 4区化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

Russian Journal of Physical Chemistry B Pub Date : 2025-01-27 DOI:10.1134/S1990793124701045

L. V. Panova, D. A. Lemenovskii, M. I. Afanasov, M. A. Popkov, R. O. Burlutsky, M. M. Brusova, V. N. Talanova, D. N. Kholodkov

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引用次数: 0

摘要

本文提出了一种合成硅氧烷气凝胶的有效方法，该方法在聚合物结构中嵌入了杂化结构。初始阶段，采用BF3⋅Et2O在丙酮中催化四乙氧基硅烷与含二茂铁的烷氧基硅烷缩聚制得凝胶。用超临界二氧化碳（SC-CO2）将凝胶转化为气凝胶。通过Mössbauer光谱法和氮气吸附法对气凝胶样品进行了详细的表征，并测定了材料的密度。所得气凝胶中的铁含量在3.6 - 8.7 wt %（或11.9-28.7 wt %二茂铁单位）之间变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Ferrocene-Modified Siloxane Aerogels

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Ferrocene-Modified Siloxane Aerogels

An efficient method has been developed for the synthesis of siloxane aerogels with a hybrid structure built into the polymer structure. At the initial stage, a gel was obtained by polycondensation of tetraethoxysilane and ferrocene-containing alkoxysilanes, catalyzed by BF₃ ⋅ Et₂O in acetone. The transformation of gels into aerogels was performed using supercritical carbon dioxide (SC-CO₂). The aerogel samples were characterized in detail by Mössbauer spectroscopy and nitrogen adsorption methods, and the density of the materials was determined. The iron content in the resulting aerogels varied from 3.6 to 8.7 wt % (or 11.9–28.7 wt % ferrocene units).

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来源期刊

Russian Journal of Physical Chemistry B 化学-物理：原子、分子和化学物理

CiteScore

2.20

自引率

71.40%

发文量

106

审稿时长

4-8 weeks

期刊介绍： Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.