| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
기능성고분자－막분리용 고분자 |
| 제목 |
Glass Transition Temperature vs Molecular Weight Relationships for Polyurethane Oligomers with Various Types and Lengths of Hard Segments |
| 초록 |
The glass transition temperatures of hard segments of segmented polyurethanes are of practical significance for both tailored molecular design and interpretation of the extent of phase mixing between the soft segment and hard segment. Various types and lengths of hard segment of polyurethane were respectively synthesized and characterized by using FT-IR, GPC and DSC. Within the experimental ranges the glass transition temperature of hard segment increased with increasing molecular weight of the segment, regardless of the type and length of polyol and type of isocyanate as well. To quantitatively analyze the data, Fox-Flory type relationship was employed and the two parameters (A and B) were determined using the least square method. |
| 저자 |
박지혜1, 배차영2, 김은영3, 김병규1
|
| 소속 |
1부산대, 2삼성전자, 3부경대 |
| 키워드 |
Polyurethane; Glass Transition Temperature; Molecular Weight
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| E-Mail |
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