| 학회 |
한국고분자학회 |
| 학술대회 |
2003년 가을 (10/10 ~ 10/11, 부경대학교) |
| 권호 |
28권 2호, p.137 |
| 발표분야 |
고분자 가공/블렌드 |
| 제목 |
The Effects of 3,3`,4,4`-Benzophenone-Tetracarboxylic Dianhydride (BPDA) as a Chain Extender on Properties of Poly (ethylene terephthalate)/Poly (ethylene-co-acrylic acid) (PET/PEAA) Blends. |
| 초록 |
This study deals with the preparation of PET/PEAA blends via reactive extrusion and solid-state polymerization. Besides, possibility of additional chain extension by incorporation of BPDA without solid-state polymerization was examined. Poly (ethylene terephthalate)/Poly (ethylene-co-acrylic acid) (PET/PEAA) blends were prepared by employing reactive extrusion. The effect of post solid-state polymerization (SSP) and/or the introduction of 3,3`,4,4`-Benzophenone-tetracarboxylic dianhydride (BPDA) on the molecular weight and physical properties of PET/PEAA blends were investigated using dynamic oscillatory viscometer (ARES) and DSC. Resulting PET/PEAA samples exhibited shear thinning with increasing shear frequency, which may be due to the effect of branches. The post-SSP method contributed to improving intrinsic viscosity of 3.7% to 39.0%. Also chain extension of PET with BPDA is a great help to improvement of intrinsic viscosity: due to increasing molecular weight and introducing branches. chain extension is more efficient process than post solid-state polymerization to increasing molecular weight. |
| 저자 |
김수찬1, 임승순1, 최성신2, 김정수3, 정수윤3
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| 소속 |
1한양대, 2충남대, 3호남석유화학 |
| 키워드 |
PET; branch; chain extension
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| E-Mail |
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