화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터)
권호 27권 2호, p.1393
발표분야 고분자
제목 Investigating a relationship between structure of polymethylsilsesquioxane aerogel and various solvent
초록 Unique properties such as extraordinary low thermal conductivity, enormous specific surface area, or extremely low density of an aerogel are resulted from network structure of the aerogel. We surmise that one of the powerful parameters affecting the network structure of the aerogel is solvent (especially, the ratio of carbon to hydroxy group of the solvent). To prove this presumption, solvents having various ratios carbon to hydroxyl group were used in synthesizing polymethylsilsesquioxane (PMSQ) aerogel. Methanol, ethanol, 1-propanol, 2-propanol, benzyl alcohol, 1-heptanol abd 1-decanol were used as same volume. The more carbon ratio increased, the more transmittance of PMSQ aerogel increased. Moreover, network structure of PMSQ aerogel had clear tendency by carbon ratio of solvents. This work will give inspiration in sol-gel synthesis.

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government(MSIT) (No. 2020R1A5A1019131)

This work was supported by a grant (10080492) from Korea Evaluation Institute of Industrial Technology under Ministry of Trade, Industry and Energy (MOTIE), Republic of Korea.
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