| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
A study on the polyurethane networks prepared using PPG-based crosslinkers with catalyst-free azide-alkyne click functionality |
| 초록 |
In this study, glycidyl azide polymer was cured through polyurethane reaction with isophorone diisocyanate and “click reaction” of the azide group and alkyne in PPG-based cross-linkers through a 1,3-dipolar cycloaddition reaction to form polyurethane networks. The PPG-based cross-linker were synthesized with propargyl 3-carboxylic-propanoate and series of poly(propylene glycol) (PPG) (Mn=76, 425, 1000). Crosslinking density and the molecular weights between the crosslinking points (Mc) were determined from swelling data, and Flory-Rehner equation. Thermal and mechanical properties of these polyurethane networks were measured and analyzed as a function of crosslinking density and Mc. |
| 저자 |
김진석1, 권영환2, LAN QIAN QIAN2
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| 소속 |
1국방과학(연), 2Daegu Univ. |
| 키워드 |
PPG-based cross-linker; GAP; polyurethane; click reaction; mechanical properties; crosslinking density; swelling
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| E-Mail |
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