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Synthesis, Thermoresponsive Behavior, and Catalytic Properties of Amphiphilic Diblock Copolymers of N-Vinylcaprolactam and N-Vinylimidazole

Barabanova A.I., Blagodatskikh I.V., Vyshivannaya O.V., Muranov A.V., Peregudov A.S., Khokhlov A.R.
Тип документаJournal Article
Дата публикации2021-07-01
Название журналаPolymer Science - Series A
ИздательPleiades Publishing
Квартиль по SCImagoQ3
Квартиль по Web of ScienceQ4
Импакт-фактор 20211.38
ISSN0965545X, 15556107
Materials Chemistry
Polymers and Plastics
Краткое описание

Thermoresponsive diblock copolymers (DCs) were prepared by two-stage reversible addition-fragmentation chain transfer/macromolecular design by interchange of xanthate (RAFT/MADIX) polymerization of N-vinylcaprolactam and N-vinylimidazole (VI). The poly(N-vinylcaprolactam) (PVCL) blocks were first synthesized and used as macro-chain transfer agent in VI polymerization. The temperature behavior of PVCL and DCs in aqueous media has been studied by static and dynamic light scattering. It has been shown that the phase separation temperature of both PVCLs and DCs depends on the length of the PVCL chain and the composition of aqueous solvent. The temperature range above the PVCL θ temperature and below the cloud point is characterized by the conformational rearrangements leading to the formation of mesoglobules. The study of catalytic activity of DCs in the hydrolysis reaction of p-nitrophenyl propionate has shown that their activity substantially increases in this transitional temperature region owing to the formation of highly developed hydrophilic–hydrophobic interfaces inside the mesoglobules.

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1. Barabanova A.I. и др. Synthesis, Thermoresponsive Behavior, and Catalytic Properties of Amphiphilic Diblock Copolymers of N-Vinylcaprolactam and N-Vinylimidazole // Polymer Science, Series A. 2021. Т. 63. № 4. С. 382–399.
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TY - JOUR

DO - 10.1134/s0965545x21040027

UR - http://dx.doi.org/10.1134/S0965545X21040027

TI - Synthesis, Thermoresponsive Behavior, and Catalytic Properties of Amphiphilic Diblock Copolymers of N-Vinylcaprolactam and N-Vinylimidazole

T2 - Polymer Science, Series A

AU - Barabanova, A. I.

AU - Blagodatskikh, I. V.

AU - Vyshivannaya, O. V.

AU - Muranov, A. V.

AU - Peregudov, A. S.

AU - Khokhlov, A. R.

PY - 2021

DA - 2021/07

PB - Pleiades Publishing Ltd

SP - 382-399

IS - 4

VL - 63

SN - 0965-545X

SN - 1555-6107

ER -

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@article{2021,

doi = {10.1134/s0965545x21040027},

url = {https://doi.org/10.1134%2Fs0965545x21040027},

year = 2021,

month = {jul},

publisher = {Pleiades Publishing Ltd},

volume = {63},

number = {4},

pages = {382--399},

author = {A. I. Barabanova and I. V. Blagodatskikh and O. V. Vyshivannaya and A. V. Muranov and A. S. Peregudov and A. R. Khokhlov},

title = {Synthesis, Thermoresponsive Behavior, and Catalytic Properties of Amphiphilic Diblock Copolymers of N-Vinylcaprolactam and N-Vinylimidazole}

}

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Barabanova, A. I. et al. “Synthesis, Thermoresponsive Behavior, and Catalytic Properties of Amphiphilic Diblock Copolymers of N-Vinylcaprolactam and N-Vinylimidazole.” Polymer Science, Series A 63.4 (2021): 382–399. Crossref. Web.