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Effects of concentration and pH on the thermosensitive behavior of a graft copolymer with polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains. / Ivanova, A. S.; Zakharova, N. V.; Filippov, A. P.; Meleshko, T. K.; Yakimansky, A. V.

In: Polymer Science - Series A, Vol. 59, No. 3, 01.05.2017, p. 281-287.

Research output: Contribution to journal › Article › peer-review

Harvard

Ivanova, AS, Zakharova, NV, Filippov, AP, Meleshko, TK & Yakimansky, AV 2017, 'Effects of concentration and pH on the thermosensitive behavior of a graft copolymer with polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains', Polymer Science - Series A, vol. 59, no. 3, pp. 281-287. https://doi.org/10.1134/S0965545X17030087

APA

Ivanova, A. S., Zakharova, N. V., Filippov, A. P., Meleshko, T. K., & Yakimansky, A. V. (2017). Effects of concentration and pH on the thermosensitive behavior of a graft copolymer with polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains. Polymer Science - Series A, 59(3), 281-287. https://doi.org/10.1134/S0965545X17030087

Vancouver

Ivanova AS, Zakharova NV, Filippov AP, Meleshko TK, Yakimansky AV. Effects of concentration and pH on the thermosensitive behavior of a graft copolymer with polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains. Polymer Science - Series A. 2017 May 1;59(3):281-287. https://doi.org/10.1134/S0965545X17030087

Author

Ivanova, A. S. ; Zakharova, N. V. ; Filippov, A. P. ; Meleshko, T. K. ; Yakimansky, A. V. / Effects of concentration and pH on the thermosensitive behavior of a graft copolymer with polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains. In: Polymer Science - Series A. 2017 ; Vol. 59, No. 3. pp. 281-287.

BibTeX

@article{754b9f2f58c442b2af121886b867cf70,
title = "Effects of concentration and pH on the thermosensitive behavior of a graft copolymer with polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains",
abstract = "Aqueous solutions of the graft copolymer with a polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains with a molecular mass of M = 4.7 × 105 and a grafting density of side chains of 0.44 are investigated by light scattering and turbidimetry. Solutions are studied in a wide concentration range of 0.0008–0.0250 g/cm3 at рН values varying from 2 to 12 for each concentration. The temperature dependences of optical transmission, scattered light intensity, and hydrodynamic radii of scattering objects are obtained. It is shown that the copolymer is thermosensitive only at pH > 8.0. A decrease in acidity of the medium at a fixed concentration of the copolymer is accompanied by a decline in temperatures corresponding to the onset and end of phase separation Т1 and Т2, leading to the narrowing of this interval. At constant рН values, temperatures Т1 and Т2 rise with solution dilution, while the phase transition interval becomes wider.",
author = "Ivanova, {A. S.} and Zakharova, {N. V.} and Filippov, {A. P.} and Meleshko, {T. K.} and Yakimansky, {A. V.}",
year = "2017",
month = may,
day = "1",
doi = "10.1134/S0965545X17030087",
language = "English",
volume = "59",
pages = "281--287",
journal = "Polymer Science - Series A",
issn = "0965-545X",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "3",

}

RIS

TY - JOUR

T1 - Effects of concentration and pH on the thermosensitive behavior of a graft copolymer with polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains

AU - Ivanova, A. S.

AU - Zakharova, N. V.

AU - Filippov, A. P.

AU - Meleshko, T. K.

AU - Yakimansky, A. V.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Aqueous solutions of the graft copolymer with a polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains with a molecular mass of M = 4.7 × 105 and a grafting density of side chains of 0.44 are investigated by light scattering and turbidimetry. Solutions are studied in a wide concentration range of 0.0008–0.0250 g/cm3 at рН values varying from 2 to 12 for each concentration. The temperature dependences of optical transmission, scattered light intensity, and hydrodynamic radii of scattering objects are obtained. It is shown that the copolymer is thermosensitive only at pH > 8.0. A decrease in acidity of the medium at a fixed concentration of the copolymer is accompanied by a decline in temperatures corresponding to the onset and end of phase separation Т1 and Т2, leading to the narrowing of this interval. At constant рН values, temperatures Т1 and Т2 rise with solution dilution, while the phase transition interval becomes wider.

AB - Aqueous solutions of the graft copolymer with a polyimide backbone and poly(N,N-dimethylamino-2-ethyl methacrylate) side chains with a molecular mass of M = 4.7 × 105 and a grafting density of side chains of 0.44 are investigated by light scattering and turbidimetry. Solutions are studied in a wide concentration range of 0.0008–0.0250 g/cm3 at рН values varying from 2 to 12 for each concentration. The temperature dependences of optical transmission, scattered light intensity, and hydrodynamic radii of scattering objects are obtained. It is shown that the copolymer is thermosensitive only at pH > 8.0. A decrease in acidity of the medium at a fixed concentration of the copolymer is accompanied by a decline in temperatures corresponding to the onset and end of phase separation Т1 and Т2, leading to the narrowing of this interval. At constant рН values, temperatures Т1 and Т2 rise with solution dilution, while the phase transition interval becomes wider.

UR - http://www.scopus.com/inward/record.url?scp=85019738560&partnerID=8YFLogxK

U2 - 10.1134/S0965545X17030087

DO - 10.1134/S0965545X17030087

M3 - Article

AN - SCOPUS:85019738560

VL - 59

SP - 281

EP - 287

JO - Polymer Science - Series A

JF - Polymer Science - Series A

SN - 0965-545X

IS - 3

ER -

ID: 9320009