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논문 기본정보
Synthesis and characterization of hydrophobic and mesoporous silicate-silsesquioxane hybrid copolymers
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | Microporous and mesoporous materials : the official journal of the International Zeolite Association |
| ISSN | 1387-1811, |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | Hayashi, E.,Shimokawa, T. |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2016-01-01 |
| 초록 | Mesoporous and hydrophobic silicate-silsesquioxane hybrid copolymers were synthesized from tetraethoxysilane and methyltrimethoxysilane by hydrolysis and condensation polymerization using a basic catalyst. The porosity and hydrophobicity of the calcined copolymers were studied by measuring the adsorption isotherms of water and using several other techniques, such as solution and solid-state 29 Si-NMR spectroscopy, small-angle X-ray scattering (SAXS), and 1 H-MAS NMR spectroscopy. The porous structure of the calcined polymers was influenced by the branched polymer structure and the high condensation ratio of the rigid polymer framework. The hydrophobicity of the polymers depended on the number of residual silanol groups and the degree of polymer branching. The highly branched polymer had an indented surface that caused the polymer to exhibit relatively hydrophobic characteristics owing to segregation of the silanol groups. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART73229505 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
|---|---|
| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | Silicate-silsesquioxane hybrid copolymers,Porosity,Hydrophobicity,Silanol groups |