Water-soluble polymers from acid-functionalized norbornenes

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 (Mn from GPC) ranging from 31 to 242 kg/mol and polydispersity indices betwee...

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Veröffentlicht in:	Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2009-03, Vol.47 (5), p.1266-1273
Hauptverfasser:	Lienkamp, Karen, Kins, Christoph F, Alfred, Sterling F, Madkour, Ahmad E, Tew, Gregory N
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences carboxylic acid dynamic light scattering Exact sciences and technology norbornene Organic polymers oxa-norbornene Physicochemistry of polymers poly electrolyte Polymerization Preparation, kinetics, thermodynamics, mechanism and catalysts ring-opening metathesis polymerization (ROMP) water-soluble polymers
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Zusammenfassung:	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 (Mn 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.
ISSN:	0887-624X 1099-0518
DOI:	10.1002/pola.23223