Thermal transitions of poly(N-isopropylmethacrylamide) in aqueous solutions

M. Salmerón Sánchez; L. Hanyková; M. Ilavský; M. Monleón Pradas

doi:10.1016/j.polymer.2004.04.020

Thermal transitions of poly(N-isopropylmethacrylamide) in aqueous solutions

M. Salmerón Sánchez, L. Hanyková, M. Ilavský, M. Monleón Pradas

Research output: Contribution to journal › Article

34 Citations (Scopus)

Abstract

Thermal transitions of poly(N-isopropylmethacrylamide) (PIPMAm) in aqueous solutions were studied in a wide temperature range from -100 to 60°C. The solutions of different polymer weight fractions (c=0.03-1) were investigated in cooling and heating scans of differential scanning calorimetry; four qualitatively different kinds of thermograms were identified in dependence of the fraction, c. The transitions are explained in a thermodynamic framework based on the phase diagram of the system. This diagram provides a complete understanding of thermal transitions in aqueous PIPMAm solutions as a function of c, in particular the existence of non-crystallizable water and the temperature induced phase transition that is due to the hydrophobic interaction in PIPMAm solutions.

Original language	English
Pages (from-to)	4087-4094
Number of pages	8
Journal	polymer
Volume	45
Issue number	12
DOIs	https://doi.org/10.1016/j.polymer.2004.04.020
Publication status	Published - May 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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Salmerón Sánchez, M., Hanyková, L., Ilavský, M., & Monleón Pradas, M. (2004). Thermal transitions of poly(N-isopropylmethacrylamide) in aqueous solutions. polymer, 45(12), 4087-4094. https://doi.org/10.1016/j.polymer.2004.04.020

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abstract = "Thermal transitions of poly(N-isopropylmethacrylamide) (PIPMAm) in aqueous solutions were studied in a wide temperature range from -100 to 60°C. The solutions of different polymer weight fractions (c=0.03-1) were investigated in cooling and heating scans of differential scanning calorimetry; four qualitatively different kinds of thermograms were identified in dependence of the fraction, c. The transitions are explained in a thermodynamic framework based on the phase diagram of the system. This diagram provides a complete understanding of thermal transitions in aqueous PIPMAm solutions as a function of c, in particular the existence of non-crystallizable water and the temperature induced phase transition that is due to the hydrophobic interaction in PIPMAm solutions.",

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AU - Ilavský, M.

AU - Monleón Pradas, M.

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