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|
| Type |
Poster Presentation |
| Area |
Polymer Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 18일 (목요일) 11:00~12:30 |
| Code |
POLY.P-17 |
| Subject |
Structure-controllable synthesis method that ladder structure and cage structure of polysilsesquioxane via the sol-gel reaction of various silane |
| Authors |
Han Jun Mun, Jae Young Bae*
Department of Chemistry, Keimyung University, Korea
|
| Abstract |
Polysilsesquioxanes were prepared by hydrolysis and condensation polymerization using various tri-functional alkoxide silane having a T3 structure. Polysilsesquioxanes include three structures: random structure, ladder structure and cage structure. In this study, polysilsesquioxanes of cage structure and ladder structure were prepared at room temperature pressure by controlling silane concentration and amount of water in hydrolysis and condensation of various silane. Two types of products were analyzed by 29Si-NMR to observe the T2 and T3 peaks. The crystal lattice of products was confirmed by XRD analysis and a molecular weight of prepared products was compared with the predicted molecular weight of PSSQ's structure by MALDI-TOF and GPC analysis. A distinguishable synthesis of cage and ladder structures was observed by controlling the amount of water and silane concentration used for synthesis of polysilsesquioxane. The amount of water and concentration of silane are expected to determine the mechanism that the cyclic and linear compounds are synthesized. |
| E-mail |
gkswns1662@naver.com |
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122nd General Meeting of the KCS