期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 47, 期 5, 页码 1266-1273出版社
WILEY
DOI: 10.1002/pola.23223
关键词
carboxylic acid; dynamic light scattering; norbornene; oxa-norbornene; poly electrolyte; ring-opening metathesis polymerization (ROMP); water-soluble polymers
资金
- Materials Research Science and Engineering Center program of the National Science Foundation [DMR 9400488]
- German Academic Exchange Service (DAAD)
- German Research Foundation (DFG)
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [820506] Funding Source: National Science Foundation
Unprotected exo,exo-5-norbornene-2,3-dicarboxylic acid and exo,exo-7-oxa-5-norbornene-2,3-dicarboxylic acid were polymerized via ring-opening metathesis polymerization. This reaction yielded polymers with molecular weights (M-n from GPC) ranging from 31 to 242 kg/mol and polydispersity indices between 1.05 and 1.12, using Grubbs' third generation catalyst. The water solubility as a function of pH value of the polymers was investigated by dynamic light scattering (DLS). DLS and acid-base titration revealed that the oxanorbornene polymer was water soluble over a wider pH range than its norbornene analog. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 1266-1273, 2009
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