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On the Dimensions of Intramolecularly Crosslinked Polymer Molecules. I. The Synthesis and Chemical Characterization of Intramolecularly Crosslinked Polystyrene Molecules Having a Narrow Distribution of Molecular Weight
G. Allen, J. Burgess, S. F. Edwards and D. J. Walsh
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences
Vol. 334, No. 1599 (Sep. 25, 1973), pp. 453-463
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/78337
Page Count: 11
You can always find the topics here!Topics: Polymers, Molecules, Crosslinking, Diisocyanates, Molecular weight, Amines, Isocyanates, Molecular chains, Materials, Binding sites
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The synthesis of intramolecularly crosslinked polystyrene molecules has bee nachieved by controlled chlormethylation of anionic polystyrene. The chlormethyl groups were reacted with n-butylamine and the secondary amine derivative thus produced was crosslinked by reaction with a diisocyanate in dilute solution. Samples were prepared containing a selected number of crosslinks in the range 5 to 150 per polymer molecule. The materials were completely soluble. The number of crosslinks in each sample was determined by quantitative infrared studies.
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences © 1973 Royal Society