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SYNTHESIS OF DILITHIUM ALPHA,OMEGA-DISULFONATED POLYSTYRENE BY ANIONIC-POLYMERIZATION
- KIM, Jungahn;
- LEE, MiKyung;
- RYU, Chang-Yeol;
- LEE, Jonghwi;
- HWANG, Seung Sang;
- 외 7명
WEB OF SCIENCE
4초록
The chain-end sulfonation of alpha,omega-dilithiopolystyrene prepared by lithium naphthalenide as a difunctional initiator using 1,3-propanesultone was studied by the characterization methodologies such as acid/base titration, colorimetric method using methylene blue, two-phase titration with Hyamine 1622, size exclusion chromatographic analysis infrared, and H-1 NMR spectroscopic analysis. The reactivity modification of alpha,omega-dilithiopolystyrene through the end-capping with 1,1-diphenylethylene prior to the sulfoalkylation in benzene-tetrahydrofuran (THF) (10:1, v/v) at 25-degrees-C with excess 1,3-propanesultone is suggested as a useful method for the preparation of the corresponding dilithium alpha,omega-disulfonated polystyrene in relatively high yield based on the results from the acid/base titration (>85%).
키워드
- 제목
- SYNTHESIS OF DILITHIUM ALPHA,OMEGA-DISULFONATED POLYSTYRENE BY ANIONIC-POLYMERIZATION
- 저자
- KIM, Jungahn; LEE, MiKyung; RYU, Chang-Yeol; LEE, Jonghwi; HWANG, Seung Sang; PARK, Tae Suk; KIM, Kwang Ung; YOON, Hye Sung; AHN, Byeong In; CHAR, Kookheon; RYU, Joo Han; QUIRK, Roderic P.
- 발행일
- 1994-01
- 유형
- Article
- 저널명
- Polymer Journal
- 권
- 26
- 호
- 10
- 페이지
- 1111 ~ 1117