๐”– Bobbio Scriptorium
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Magic Angle Spinning-Cross Polarization13C NMR of crosslinked unsaturated polyester resins

โœ Scribed by Maurizio Paci; Vittorio Crescenzi; Francesco Campana


Publisher
Springer
Year
1982
Tongue
English
Weight
196 KB
Volume
7
Category
Article
ISSN
0170-0839

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The unsaturated polyesters derived from maleic anhydride and 2,2-di(4-hydroxypropoxyphenyl)propane were copolymerized with styrene in order to obtain the crosslinked materials. They were studied by means of high resolution 13C n.m.r. in the solid state (CP/MAS). The structural changes upon crosslink

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Almract--The crosslinking (cure) of resins containing an unsaturated polyester from maleic and phthalic anhydrides and glycol mixed with styrene was investigated by 13C-NMR analysis of the hydrolysis products, as a function of the styrene monomer concentration in the resin. The t3C-NMR spectra of th

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## Synopsis ' C n m r has been employed to probe the molecular conformation and crystal structure of (1+6)-P-~-glucan (pustulan) in the solution, gel, and solid states. CP/MAS Y-nmr spectra recorded for partially crystalline solid pustulan display a resonance near 82 ppm that is absent in solution