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Research Article

PS@poly(NIPAM-co-AA) core@shell nanoparticles: size control and tuning of LCST

L.O. Vretika Chemistry department, Taras Shevchenko Kyiv National University, Kyiv, UkraineCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-3456-7518View further author information
ORCID Icon,
O.M. Chepurnab College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, People’s Republic of China;c Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, California, USAORCID Iconhttps://orcid.org/0000-0002-9942-5177View further author information
ORCID Icon,
A.I. Marynind National University of Food Technologies, Kyiv, UkraineORCID Iconhttps://orcid.org/0000-0001-6692-7472View further author information
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O.A. Nikolaevaa Chemistry department, Taras Shevchenko Kyiv National University, Kyiv, UkraineORCID Iconhttps://orcid.org/0009-0006-4799-776XView further author information
ORCID Icon &
T.Y. Ohulchanskyyb College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong, People’s Republic of China;e Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, New York, USAORCID Iconhttps://orcid.org/0000-0002-7051-6534View further author information
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Published online: 15 Jul 2024
 
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Abstract

Here, we demonstrate a synthetic approach to precise size control of PNIPAM-based core@shell nanoparticles prepared by microemulsion polymerization as well as control of low critical solution temperature (LCST) of their water dispersions. The size of the PS-core can be tuned to ∼30 nm by a simple increase of mechanical stirring up to 1200 rpm, while the thickness of the thermoresponsive @poly(N-isopropyl acrylamide-co-acrylamide) shell can be controlled by varying the polymerization time. The effect of not only a molar ratio or co-monomer nature but also a strong influence of a thermoresponsive shell thickness on the LCST was found.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was supported in part by the Natural Science Foundation of China (Grant 61875135 to T.Y. Ohulchanskyy).

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