| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.463 |
| 발표분야 | 고분자 합성 |
| 제목 | Preparation of Polyimide Based on 3-Component System having Good Optical and Thermal Properties |
| 초록 | Polyimides (PIs) have been interested in the field of optical film and display because of their excellent thermal, mechanical and electrical properties. However, conventional aromatic polyimides have yellowish color due to the conjugation structure and /or the existence of a charge-transfer complex (CTC). And many colorless polyimide based on alicyclic structure were low thermal stability and poor chemical resistance. Thus, we focused on the incorporation of -SO2-, -O- linkage into the aromatic polymer structure for breaking CTC and introduced crosslinkable moiety in polyimide in order to improve the thermal and chemical resistance. Colorless polyimides were prepared from 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6FDA), 3,3,'4,4'-oxydiphthalic anhydride (ODPA), bis[4-(3-aminophenoxy)phenyl]sulfone (BAPS) and 3-sulfonyldianiline (3SDA) as comonomer in order to improve the thermal property. The synthesized polyimides were characterized by FT-IR, 1H-NMR, and EA. The thermal properties were measured by DSC and TGA. The optical properties were evaluated by colormeter, hazemeter and UV-visible spectroscopy. Table 1. Optical property of polyimides based on 6FDA with 3-components. Figure 1. DSC thermograms of polyimides based on 6FDA with 3-components. Reference 1. K. L. Mittal, Polyimides: Synthesis, Chararaterization and Application ; New York, 1996 2. M. K. Madhra, M. Sharma, and S. Banerjee, J. Polym. Sci., 93, 235 (2004) |
| 저자 | 마승락1, 이은상1, 김정수2, 이재흥1, 원종찬1 |
| 소속 | 1한국화학(연), 2충남대 |
| 키워드 | colorless polyimide; crosslinkable |
