caa a22 4500 606195084 CHVBK 20210128100917.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10934-015-0026-6 doi (NATIONALLICENCE)springer-10.1007/s10934-015-0026-6 Elastic silica aerogel using methyltrimethoxysilane precusor via ambient pressure drying [Elektronische Daten] [Long Cai, Guorong Shan] The use of N,N-dimethylformamide (DMF) as a drying control chemical additive was found to be effective in obtaining methyltrimethoxysilane (MTMS) based silica aerogels in terms of excellent monolithic property, hydrophobicity and elasticity. The aerogels were produced by hydrolysis and condensation of methanol diluted MTMS in presence of ammonia catalyst followed by ambient drying. The molar ratio of DMF/MTMS varies from 0 to 1. It has been observed that higher DMF/MTMS value leads to lower density (~0.15g/cm3) and higher porosity of aerogels with excellent hydrophobicity. For DMF/MTMS (~0.6) values, monolithic and elastic aerogels which can recover to their original shapes after compression were obtained. Narrower and more uniform pore size distribution was observed for the DMF modified aerogels in our study. Springer Science+Business Media New York, 2015 Silica aerogels nationallicence Elasticity nationallicence Hydrophobicity nationallicence Ambient drying nationallicence Cai Long State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310027, Hangzhou, China aut Shan Guorong State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310027, Hangzhou, China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/6(2015-12-01), 1455-1463 1380-2224 22:6<1455 2015 22 10934 https://doi.org/10.1007/s10934-015-0026-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-0026-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cai Long State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310027, Hangzhou, China aut NATIONALLICENCE 700 1- Shan Guorong State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310027, Hangzhou, China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/6(2015-12-01), 1455-1463 1380-2224 22:6<1455 2015 22 10934