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Citation
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HERO ID
6659887
Reference Type
Journal Article
Title
Characterization of styrene/methacrylic acid copolymers by 2D-NMR spectroscopy
Author(s)
Brar, AS; Hekmatyar, SK; ,
Year
2001
Is Peer Reviewed?
Yes
Journal
Journal of Applied Polymer Science
ISSN:
0021-8995
EISSN:
1097-4628
Publisher
JOHN WILEY & SONS INC
Location
NEW YORK
Page Numbers
2444-2453
DOI
10.1002/app.2095
Web of Science Id
WOS:000171143000013
Abstract
Styrene/methacrylic acid copolymers were prepared by free-radical photopolymerization using the uranyl nitrate ion as the initiator. The copolymer composition was determined from H-1-NMR spectroscopy. The comonomer reactivity ratios determined using Kelen Tudos and nonlinear error in variable methods (EVM) are r(m) = 0.61 +/- 0.05 and r(s) = 0.14 +/- 0.07. The broad and overlapping H-1-NMR spectrum was assigned using the help of 2D TOCSY and NOESY experiments. These methods were used to ascertain the various geminal, vicinal, and spatial couplings between the protons. The methyl and methine protons also show configurational and compositional sensitivity. (C) 2001 John Wiley & Sons, Inc.
Tags
IRIS
•
Nitrate/Nitrite
Supplemental LitSearch Update 1600-2015
WoS
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