| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis and Properties of Polyurethane Nanocomposites from Reactive Polyhedral Oligomeric Silsesquioxanes |
| 초록 |
Organic-inorganic hybrid materials have attracted considerable interests since they can combine the advantages of inorganic materials with those of organic materials. Generally, the physical blending of inorganic particles with organic polymer aggravates due to the unfavorable miscibility. However, the problem can largely be resolved by using a polyhedral oligomeric silsesquioxane (POSS) with the particle size 1-3nm containing 1-8 reactive groups. The POSS was modified with trimethoxysilane by a hydrosilylation and subsequently sol-gel reaction to synthesize the polyurethane-POSS nanocomposites which were tested for mechanical, dynamic mechanical properties and thermal stability. It has shown that modified POSS incorporated into the PU chains by sol-gel reaction becomes multifunctional chemical crosslinker which effectively reinforces the materials mechanically compared with those prepared by UV curing. |
| 저자 |
이수경, 김병규
|
| 소속 |
부산대 |
| 키워드 |
Polyurethane nanocomposite; POSS; Sol-gel reaction
|
| E-Mail |
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