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NMR and infrared study of crystalline forms of stereoregular poly(methyl methacrylates)
Author(s) -
Schneider Bohdan,
Spêváček Jiří,
Straka Jaroslav,
Štokr Jan
Publication year - 1990
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19900340114
Subject(s) - tacticity , crystallinity , amorphous solid , methacrylate , materials science , methyl methacrylate , infrared spectroscopy , nmr spectra database , infrared , polymer chemistry , spectral line , polymer , poly(methyl methacrylate) , crystallography , chemistry , organic chemistry , polymerization , optics , physics , composite material , astronomy
13 C CP MAS NMR spectra and infrared spectra of amorphous and semicrystalline samples of stereo‐regular poly(methyl methacrylates) were measured. The spectra of the crystalline phases of isotactic PMMA, syndiotactic PMMA and of the so‐called stereocomplex PMMA were obtained by a computer difference technique. These spectra are discussed in relation to the conformational structure of the studied systems.