Effect of Urea on Phase Transition of Poly(N-isopropylacrylamide) Investigated by Differential Scanning Calorimetry

Y Gao, J Yang, Y Ding, X Ye - The Journal of Physical Chemistry …, 2014 - ACS Publications
The effect of urea on the phase transition of PNIPAM was studied using differential scanning
calorimetry (DSC). For a certain urea concentration, the enthalpy change of phase transition …

Role of Bound Water and Hydrophobic Interaction in Phase Transition of Poly(N-isopropylacrylamide) Aqueous Solution

EC Cho, J Lee, K Cho - Macromolecules, 2003 - ACS Publications
It has been suggested that the phase transition of the poly (N-isopropylacrylamide)(PNiPAM)
aqueous solution consists of at least two different processes:(1) a rearrangement of bound …

Energetics and mechanisms of poly (N-isopropylacrylamide) phase transitions in water–methanol solutions

VY Grinberg, TV Burova, NV Grinberg… - …, 2020 - ACS Publications
The phase transitions of poly (N-isopropylacrylamide)(PNIPAM) in water–methanol mixed
solutions were studied in detail by high-sensitivity differential scanning calorimetry. From this …

A infrared spectroscopic study on the mechanism of temperature-induced phase transition of concentrated aqueous solutions of poly (N-isopropylacrylamide) and N …

H Lai, P Wu - Polymer, 2010 - Elsevier
FTIR in combination with perturbation correlation moving window (PCMW) technique was
applied to study the phase transition of concentrated aqueous solutions of Poly (N …

Lower Critical Solution Temperature Behavior of Poly(N-(2-ethoxyethyl)acrylamide) as Compared with Poly(N-isopropylacrylamide)

Y Maeda, J Sakamoto, S Wang… - The Journal of Physical …, 2009 - ACS Publications
Temperature-responsive phase separation of poly (N-(2-ethoxyethyl) acrylamide)(PEoEA,
phase transition temperature, T p= 38° C) and poly (N-(2-ethoxyethyl) methacrylamide) …

LCST behavior of copolymers of N-isopropylacrylamide and N-isopropylmethacrylamide in water

MK Kokufuta, S Sato, E Kokufuta - Colloid and Polymer Science, 2012 - Springer
The lower critical solution temperature (LCST) behavior of copolymers of N-
isopropylacrylamide (NiPA) and N-isopropylmethacrylamide (NiPMA) in water was studied …

Studies of phase transition of aqueous solution of poly (N, N-diethylacrylamide-co-acrylic acid) by differential scanning calorimetry and spectrophotometry

LH Gan, W Cai, KC Tam - European polymer journal, 2001 - Elsevier
The phase transitions of aqueous solutions of poly (N, N-diethylacrylamide-co-acrylic
acid)(DEAAm–AA) were studied by micro-differential scanning calorimetry (DSC) and UV …

Unusual Conformational Behavior of Complexes of Poly(N-isopropylacrylamide) with Poly(methacrylic acid)

TV Burova, NV Grinberg, VY Grinberg… - …, 2005 - ACS Publications
Hydrogen-bonded interpolymer complexes between poly (N-isopropylacrylamide)(pNIPA)
and poly (methacrylic acid)(pMAA) were studied in aqueous solutions by means of high …

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

MS Sánchez, L Hanyková, M Ilavský, MM Pradas - Polymer, 2004 - Elsevier
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 …

Phase Transition in Linear and Cross-Linked Poly(N-Isopropylacrylamide) in Water: Effect of Various Types of Additives

D Dhara, PR Chatterji - Journal of macromolecular science, Part C …, 2000 - Taylor & Francis
The conformational status of a macromolecule in solution is dictated primarily by two forces:
polymer-solvent interaction and polymer-polymer interaction. In a good solvent, the former …