Baskakov A.

Gol'dgammer K.

Korshak V.

Maklakov A.

Pimenov G.

Valetskii P.

Vinogradova S.

Polymer Science U S S R

Kazan Federal University Digital Repository

Study using NMR of polyarylates 953 4. GUBEN-VEIL', Metody organicheskoi khimii (Methods of Organic Chemistry). I I ,  p. 451, Goskhimizdat, 1963 5. V. B. CHIPALKATTI, R. M. DESAI, N. B. SATTUR, J. VARGHESE arLd J. C. PATEL, Text. Res. J. 33: 282, 1963 6. O.P. GOLOVA, N. I. NOSOVA, Ye. A. ANDRIEVSKAYA and L. A. VOLKOVA, Vysokomol. soyed. 7: 1619, 1965 (Translated in Polymer Sci. U.S.S.R. 7: 9, 1792, 1965) STUDY USING NMR OF POLYARYLATES DERIVED FROM BISPHENOLS SUBSTITUTED IN THE RING* K. A. GOL'DGAi~IMER, G. G. I~IMEI~OV, A. I. MAKLAKOV, V. V. KORSHAK, S. V. VII~OGRADOVA, P .  M. VALETSKII and A. N. BASKA~OV Kazan State University Institute of Hetero-organic Compounds, U.S.S.R. Academy of Sciences (Received 26 May 1967) As POInTeD out previously [ 1], the physical properties of heat-resistant polymers-- polyarylates--have b en little studied and require further investigation. This paper deals with several polyarylates containing CHa groups in various combinations from the point of view of evaluating molecular mobility by nuclear magnetic resonance (NMR) and dilatometry. I:XPI:RIMENTAL Several po lya~lates  were studied, of which the repeating unit has the structure: CHa . .  . . .  CH3 \ 0 0 R R The structural formulae of secondary radicals R, the designations of the polymers and their characteristics are given in Table 1. The ~rMR spectra were observed in a laboratory apparatus with a frequency of 24 Me/s at temperatures ranging from -- 196 to 330 ° as a derivative of the absorption signal, Prior to measurement, the samples were evacuated at 100 ° and a pressure of 2 × 10 -~ mmHg for 2-3 hr and sealed in a glass ampoule. * Vysokomol. soyed. A10: No. 4, 821-825, 1968. 

Study using NMR of polyarylates derived from bisphenols substituted in the ring

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Study using NMR of polyarylates derived from bisphenols substituted in the ring

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