SYNTHESIS OF DILITHIUM ALPHA,OMEGA-DISULFONATED POLYSTYRENE BY ANIONIC-POLYMERIZATION

Authors
KIM, JHLEE, MKRYU, CYLEE, JWHWANG, SSPARK, TSKIM, KUYOON, HSAHN, BICHAR, KHRYU, JHQUIRK, RP
Issue Date
1994-01
Publisher
SOC POLYMER SCIENCE JAPAN
Citation
POLYMER JOURNAL, v.26, no.10, pp.1111 - 1117
Abstract
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%).
Keywords
HALATO-TELECHELIC POLYMERS; IONOMERS; LITHIUM; HALATO-TELECHELIC POLYMERS; IONOMERS; LITHIUM; ALPHA,OMEGA-DILITHIOPOLYSTYRENE; DIFUNCTIONAL INITIATOR; ALPHA,OMEGA-BIS(1-LITHIO-1,1-DIPHENYLETHYL)POLYSTYRENE; SULFOALKYLATION; 1,3-PROPANESULTONE; DILITHIUM; ALPHA,OMEGA-DISULFONATED POLYSTYRENE; SIZE EXCLUSION CHROMATOGRAPHY
ISSN
0032-3896
URI
https://pubs.kist.re.kr/handle/201004/145900
DOI
10.1295/polymj.26.1111
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KIST Article > Others
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