| 학회 |
한국고분자학회 |
| 학술대회 |
2002년 가을 (10/11 ~ 10/12, 군산대학교) |
| 권호 |
27권 2호, p.65 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Substituent Effects on Microstructure of Initial Reaction Products of Polyalkylsilsesquioxanes |
| 초록 |
Polysilsesquioxanes (PSSQs), [RSiO3/2]n, are becoming important as low-dielectric insulators in microelectronic devices. However, their exact structures have not been fully understood yet. The initial structures of oligomeric products are very important, because they provide an important insight into the structures and molecular weights of polymer products. We synthesized low molecular weight PSSQs with different alkyl substituents (R= propyl, trifluoropropyl) through acid catalyzed hydrolysis-condensation reactions. Then, the detailed structures of oligosilesquioxanes were observed by graphite plate laser desorption/ionization time-of-flight mass spectroscopy (GPLDI-TOF-MS). Different tendency in hydrolysis and intramolecular versus intermolecular condensation was found to result in different microstructures and properties. |
| 저자 |
김운천, 박성준, 박은수, 노현욱, 이진규, 김희준, 윤도영
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| 소속 |
서울대 |
| 키워드 |
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| E-Mail |
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| VOD |
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