| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
The investigation of stability and efficiency of difunctional initiator based on 1,3-Diisopropenylbenzene with 2-fold t-BuLi and butadiene |
| 초록 |
The stability and efficiency of the DIB/2 Bd/2 t-BuLi adducts which were prepared from the addition of 1,3-diisopropenylbenzene (DIB) with 2- fold tert-butyllithium (t-BuLi) and butadiene have been investigated. The anion concentration analysis of DIB/t-BuLi difunctional initiator with one unit of butadiene which was carried out at -10℃ in the presence of TEA at the ratio of [TEA]/[Li]=1 was titrated with 2-butanol in the glove box with 1,10-phenanthroline as the indicator. The DIB/2 Bd/2 t-BuLi anion concentration could still be 99.1% even stored for four weeks which was evidence of the good stability. The polyisoprenes were synthesized by using this DIB/2 Bd/2 t-BuLi adduct as the initiator. All the molecular weight distributions were monomodal determined by Gel Permeation Chromatography which means that DIB/2 Bd/2 t-BuLi adduct was the effective difunctional initiator. |
| 저자 |
영우빈, 이상민, 박샛별, 이범재, 장지욱, 김문수
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| 소속 |
충남대 |
| 키워드 |
1; 3-diisopropenylbenzene; stability; initiation efficiency
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| E-Mail |
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