¹H NMR Spectra (600 MHz) and Structure of an Industrial
IsobutyleneIsoprene Copolymer (Butyl Rubber)

N. Makhiyanov

OAO Nizhnekamskneftekhim, Nizhnekamsk, 423574 Tatarstan, Russia

e-mail: nail-nk@rambler.ru

Received August 26, 2013;
Revised Manuscript Received December 2, 2013

Abstract—Industrial samples of a copolymer of isobutylene with isoprene (butyl rubber) produced through
cationic polymerization via the conventional slurry process (a Lewis acid (AlCl₃) as a coinitiator, methyl chlo-
ride as a diluent) have been studied with the use of proton magnetic resonance spectroscopy at an Larmor fre-
quency of 600 MHz. Spectra were recorded for different types of deuterated solvents and concentrations of test
solutions. The signals were processed via selective improving the resolution and signal-to-noise ratio. The use
of these procedures, in combination with conformational representations, made it possible to increase the infor-
mation content of the spectra.

DOI: 10.1134/S0965545X14030109

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