| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Effect of Iodine Adsorption on the Surface Characteristics of Atactic Poly(vinyl alcohol) (PVA) Films. |
| 초록 |
The adsorption behavior in atactic poly(vinyl alcohol) (a-PVA)/iodine film was investigated, which was achieved by measuring the weigh gain of a-PVA/iodine film after immersion in I2/KI aqueous solution. The surface properties of the a-PVA films were characterized with atomic force microscopy, wide-angle X-ray diffraction. On the basis of atomic force microscopy images and calculated average roughness (Ra) values, it was determined that the surface roughness of a-PVA films increased with increasing adsorption amount such as concentration of I2/KI aqueous solution and soaking times. In terms with the iodine adsorption amount increased, Ra and root-mean-square average roughness (Rq) values of a-PVA films slightly decreased. The X-ray diffraction analysis shows that intensity of main peak at 2θ = 19.5˚ (101) of a-PVA film was decreased and shifted to higher angle with increasing concentration of I2/KI aqueous solutions due to the relaxation of crystal by the intrusion iodine. |
| 저자 |
오경일1, 신은주2, 제갈영순3, 노석균1, 류원석1
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| 소속 |
1영남대, 2동아대, 3경일대 |
| 키워드 |
adsorption; iodine; atactic poly(vinyl alcohol) (a-PVA)
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| E-Mail |
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