| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Characterization of an exact comb polyisoprene with three branches having the middle branch |
| 초록 |
An exact comb polyisoprene (PI) with three branches, with the middle branch having twice the molecular weight of the two other identical external branches, was synthesized by using anionic polymerization high vacuum techniques and appropriate chlorosilane chemistry. All intermediate and final products were characterized via size exclusion chromatography, temperature gradient interaction chromatography. As expected, due to the inability to control the exact stoichiometry of the linking reactants, the main product (exact comb PI) is contaminated by a few by-products, despite the fact that anionic polymerization is the most efficient way to produce well-defined polymers. By-products which do not well-defined due to the low resolution of SEC are separated and characterized according to their molecular structure by temperature gradient liquid chromatography. |
| 저자 |
이상훈1, 장태현1, Kedar Ratkanthwar2, Nikos Hadjichristidis3, Zubaidha Pudukulathan4, Dimitris Vlassopoulos5
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| 소속 |
1POSTECH, 2Univ. of Athens, 3KAUST, 4S.R.T.M. Univ., 5Univ. of crete |
| 키워드 |
SEC; TGIC; comb PI
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| E-Mail |
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