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Determination of extent of reaction in poly(mono- and dimethacrylates) using n.m.r. Comparison of solid-state and solution-state methods

✍ Scribed by Frank Heatley; Majid Ali; John Godward; Karl Stonebank; David C. Watts; Hugh Devlin

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 361 KB
Volume: 38
Category: Article
ISSN: 0032-3861
DOI: 10.1016/s0032-3861(96)00764-1

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✦ Synopsis

The extent of reaction in lightly cross-linked poly(mono-and dimethacrylates) has been determined using solid-and liquid-state 13C n.m.r. Three methods were used: (i) magic-angle spinning (MAS) with high-power decoupling of the solid; (ii) conventional liquid-state high-resolution n.m.r, of the samples swollen by CDC13; (iii) m.a.s, of the swollen samples. The three methods give comparable results, indicating that motional factors which may affect the solid-state method are not significant. ~ 1997 Elsevier Science Ltd.

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