Purkinas, A: search on Z-Library

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1

Investigation of the orientation of liquid crystal domains in poly-γ-benzyl-l-glutamate by IR spectroscopy

B.Z. Volchek, A.V. Gribanov, A.I. Kol'tsov, A.V. Purkina, G.P. Vlasov, L.A. Ovsyannikova

Journal:

Polymer Science U.S.S.R.

Year:

1977

Language:

english

File:

PDF, 461 KB

english, 1977

2

Experimental investigation of the phase diagrams of concentrated solutions of rigid-chain polymers with various rigidities

B.Z. Volchek, A.V. Purkina, A.A. Merkur'yeva, G.P. Vlasov, L.A. Ovsyannikova

Journal:

Polymer Science U.S.S.R.

Year:

1984

Language:

english

File:

PDF, 417 KB

english, 1984

3

Liquid Crystalline Ordering in Melts of Thermotropic Polymers with Malonic Acid Fragment in Spacer

Purkina, Alla, Volchek, Boris

Journal:

Molecular Crystals and Liquid Crystals Science and Technology Section A Molecular Crystals and Liquid Crystals

Year:

1995

Language:

english

File:

PDF, 622 KB

english, 1995

4

Potentiometric study of p-benzoquinone polymerization and the structure of the polymer

Yu.V. Medvedev, N.V. Sidorkina, A.I. Kol'tsov, A.V. Purkina, M.M. Koton

Journal:

Polymer Science U.S.S.R.

Year:

1975

Language:

english

File:

PDF, 420 KB

english, 1975

5

Determination of order parameters in thermotropic aromatic polyesters containing mesogenic and flexible fragments in the main chain

B.Z Volchek, N.S Kholmuradov, A.V Purkina, A.Yu Bilibin, S.S Skorokhodov

Journal:

Polymer Science U.S.S.R.

Year:

1986

Language:

english

File:

PDF, 549 KB

english, 1986

6

Appearance of secondary structural features of poly-L-alanine in the region of NH stretching vibrations

B. Z. Volchek, A. V. Purkina

Journal:

Journal of Applied Spectroscopy

Year:

1973

Language:

english

File:

PDF, 287 KB

english, 1973

7

The models of the denaturation of globular proteins. III. The intramolecular β -structure coil transitions in poly- S -carbobenzoxymethyl- l -cysteine

Anufrieva, E. V., Birshtein, T. M., Bolotina, I. A., Burshtein, L. L., Eskin, V. E., Frolov, V. I., Illarionova, N. G., Kalikhevich, V. I., Korotkina, O. Z., Mitin, Yu. V., Ptitsyn, O. B., Purkinas, A

Journal:

Journal of Polymer Science Part C Polymer Symposia

Year:

1967

Language:

english

File:

PDF, 1.00 MB

english, 1967

8

Experimental study of the liquid crystal-isotropic solution phase equilibrium on poly-γ-benzyl-L-glutamate in various solvents

B.Z. Volchek, A.V. Purkina, G.A. Lebedev, G.P. Vlasov, L.A. Ovsyannikova

Journal:

Polymer Science U.S.S.R.

Year:

1980

Language:

english

File:

PDF, 579 KB

english, 1980

9

An IR spectroscopic investigation of the structure of polyphenylsilsesquioxane

B.Z. Vol'chek, A.V. Purkina, V.N. Nikitin(dec.)

Journal:

Polymer Science U.S.S.R.

Year:

1976

Language:

english

File:

PDF, 423 KB

english, 1976

10

Untersuchung des Einflusses organischer Säuren auf die Eigenschaften der flüssig-kristallinen Poly-(γ-benzyl-L-glutamat) Lösungen

B. Z. Volček, A. V. Gribanov, A. I. Kolcov, A. V. Purkina, G. P. Vlasov, L. A. Ovsjannikova

Journal:

Colloid & Polymer Science

Year:

1980

Language:

german

File:

PDF, 161 KB

german, 1980

11

Experimental Investigations of the Conditions for the Formation of the Liquid Crystalline State of Polymers

Volched, B. Z., Purkina, A. V., Vlasov, G. P., Ovsynnicova, L. A.

Journal:

Molecular Crystals and Liquid Crystals

Year:

1981

Language:

english

File:

PDF, 676 KB

english, 1981

12

Synthesis of water-soluble biologically active phenol (or catechol) containing copolymers of N-vinyl-2-pyrrolidone

Michael V. Solovskij, Victor M. Denisov, Eugenij F. Panarin, Natalija A. Petukhova, Alla V. Purkina

Journal:

Macromolecular Chemistry and Physics

Year:

1996

Language:

english

File:

PDF, 590 KB

english, 1996

13

IR spectroscopic study of the secondary structure of polypeptides

B.Z. Volchek, A.V. Purkina

Journal:

Polymer Science U.S.S.R.

Year:

1972

Language:

english

File:

PDF, 676 KB

english, 1972

14

Synthesis of 2,5-Bis(ethoxycarbonyl)-1,4-cyclohexanedione Derivatives and Investigation of their Tautomerism

Sergei S. Skorokhodov, Nina M. Geller, Vladimir A. Gindin, Anatolii I. Koltsov, Alia V. Purkina

Journal:

Mendeleev Communications

Year:

1994

Language:

english

File:

PDF, 128 KB

english, 1994

15

Aspects of the structure of aromatic polyesters with mesogenic groups in the main chain in the bulk state

B.Z. Volchek, N.S. Kholmuradov, A.V. Purkina, A.Yu. Bilibin, S.S. Skorokhodov

Journal:

Polymer Science U.S.S.R.

Year:

1986

Language:

english

File:

PDF, 344 KB

english, 1986

16

Effect of the formation of liquid-crystalline order on parameters of helix-coil conformation transition in poly-γ-benzyl-L-glutamate

B.Z Volchek, D.A Medvedeva, A.V Purkina, L.A Ovsyannikova, G.P Vlasov

Journal:

Polymer Science U.S.S.R.

Year:

1987

Language:

english

File:

PDF, 367 KB

english, 1987

17

Conformational transitions in macromolecules of complex chemical structure during liquid crystalline ordering

Volchek, Boris, Shilov, Sergej, Purkina, Alla, Medvedeva, Darja

Journal:

Macromolecular Symposia

Year:

1997

Language:

english

File:

PDF, 538 KB

english, 1997

18

Influence of the liquid crystal state on the conformation of the chains of thermotropic polyesters. Possibility of conformational isomerism in the mesogenic fragment

B.Z. Volchek, A.V. Purkina, S.V. Shilov, A.Yu. Bilibin, A.A. Ten'kovtsev

Journal:

Polymer Science U.S.S.R.

Year:

1991

Language:

english

File:

PDF, 510 KB

english, 1991

19

Pecularities of Liquid Crystalline Order Formation in Polyesters with Irregular Chemical Composition

Purkina, A., Volchek, B., Shilov, S., Medvedeva, D.

Journal:

Molecular Crystals and Liquid Crystals Science and Technology Section A Molecular Crystals and Liquid Crystals

Year:

1997

Language:

english

File:

PDF, 345 KB

english, 1997

20

Copolymerizations of N-vinylpyrrolidone and activated esters of unsaturated acids

O.V. Nazarova, M.V. Solovskij, E.F. Panarin, V.M. Denisov, A.S. Khachaturov, A.I. Koltsov, A.V. Purkina

Journal:

European Polymer Journal

Year:

1992

Language:

english

File:

PDF, 249 KB

english, 1992

21

Untersuchung der Orientierung der flüssig-kristallinen Domänen des Poly-γ-benzyl-L-glutamats mittels der IR-Spektroskopie

B. Z. Volček, A. V. Gribanov, A. I. Kolcov, A. V. Purkina, G. P. Vlasov, L. A. Ovsjannikova

Journal:

Colloid & Polymer Science

Year:

1980

Language:

german

File:

PDF, 318 KB

german, 1980

22

Protonation of the amide group in solutions of strong organic acids

B.Z. Volchek, A.V. Purkina

Journal:

Polymer Science U.S.S.R.

Year:

1967

Language:

english

File:

PDF, 410 KB

english, 1967

23

Conformation, ordering and mobility of macromolecules in aromatic polyesters as studied by IR and solid-state NMR spectroscopy

Koltsov, A. I., Kapralova, V. M., Khachaturov, A. S., Medvedeva, D. A., Shilov, S. V., Purkina, A. V., Volchek, B. Z., Skorokhodov, S. S., Zuev, V. V.

Journal:

Makromolekulare Chemie Macromolecular Symposia

Year:

1993

Language:

english

File:

PDF, 627 KB

english, 1993

24

Features of the orientation of thermotropic liquid crystalline systems

B.Z. Volchek, D.A. Medvedeva, A.V. Purkina, S.V. Shilov

Journal:

Polymer Science U.S.S.R.

Year:

1990

Language:

english

File:

PDF, 413 KB

english, 1990

25

Investigation of mixed liquid crystal polymeric solutions

B.Z. Volchek, A.V. Purkina, L.A. Ovsyannikova, G.P. Vlasov

Journal:

Polymer Science U.S.S.R.

Year:

1979

Language:

english

File:

PDF, 410 KB

english, 1979

26

The liquid crystalline state and the mechanism of chain flexibility

B.Z. Volchek, A.V. Purkina, D.A. Medvedeva

Journal:

Polymer Science U.S.S.R.

Year:

1989

Language:

english

File:

PDF, 389 KB

english, 1989

27

The effects of organic acids on the properties of poly-(γ-benzyl-L-glutamate) liquid crystals solutions

B.Z. Volchek, A.V. Gribanov, A.I. Kol'tsov, A.V. Purkina, G.P. Vlasov, L.A. Ovsyannikova

Journal:

Polymer Science U.S.S.R.

Year:

1977

Language:

english

File:

PDF, 433 KB

english, 1977

28

The determination of orientational order in liquid crystalline melts of polydecamethlyne terephthaloyl-dioyxbenzoate

B.Z. Volchek, N.S. Kholmuradov, A.V. Purkina, A.Yu. Bilibin, S.S. Skorokhodov

Journal:

Polymer Science U.S.S.R.

Year:

1985

Language:

english

File:

PDF, 487 KB

english, 1985

29

IR-spectroscopic investigation of the conformational transformations of poly-l-alanine and poly-l-leucine in mixed solvents

B.Z. Volchek, A.V. Purkina

Journal:

Polymer Science U.S.S.R.

Year:

1973

Language:

english

File:

PDF, 494 KB

english, 1973

30

Role of hydrogen bonds in ordered structure—coil transitions in polypeptides caused by strong organic acids

B.Z. Volchek, A.V. Purkina

Journal:

Polymer Science U.S.S.R.

Year:

1969

Language:

english

File:

PDF, 403 KB

english, 1969

31

Study of the conformation structure of poly-n-butylisocyanate by IR spectroscopy

B.Z. Volchek, A.V. Purkina, V.N. Nikitin

Journal:

Polymer Science U.S.S.R.

Year:

1976

Language:

english

File:

PDF, 491 KB

english, 1976

32

Formation of mixed thermotropic liquid crystalline systems based on aromatic polyesters with mesogenic and flexible fragments in the main chain

B.Z. Volchek, N.S. Kholmuradov, A.V. Purkina, A.Yu. Bilibin, S.S. Skorokhodov

Journal:

Polymer Science U.S.S.R.

Year:

1987

Language:

english

File:

PDF, 475 KB

english, 1987

33

Formation of liquid crystalline order in concentrated solutions of semirigid macromolecules

B.Z. Volchek, A.V. Purkina, D.A. Medvedeva, L.A. Ovsyannikova, G.D. Rudkovskaya, G.P. Vlasov

Journal:

Polymer Science U.S.S.R.

Year:

1986

Language:

english

File:

PDF, 565 KB

english, 1986

34

Interaction of amides with strong organic acids

A. V. Purkina, A. I. Kol'tsov, B. Z. Volchek

Journal:

Journal of Applied Spectroscopy

Year:

1971

Language:

english

File:

PDF, 583 KB

english, 1971

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