Reentrant phase transition and fast responsive behaviors of poly{N-[3-(dimethylaminopropyl)] methacrylamide} hydrogels prepared in poly(ethylene glycol) solutions

2009 ◽  
Vol 113 (1) ◽  
pp. 547-552 ◽  
Author(s):  
Gökçen Birlik Demirel ◽  
Tuncer Çaykara
Keyword(s):  
Phase Transition ◽  
Ethylene Glycol ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Phase Transition Behavior, Protein Adsorption, and Cell Adhesion Resistance of Poly(ethylene glycol) Cross-Linked Microgel Particles

2005 ◽  
Vol 6 (4) ◽  
pp. 2032-2039 ◽  
Author(s):  
Christine M. Nolan ◽  
Catherine D. Reyes ◽  
Justin D. Debord ◽  
Andrés J. García ◽  
L. Andrew Lyon
Keyword(s):  
Phase Transition ◽  
Cell Adhesion ◽  
Ethylene Glycol ◽  
Protein Adsorption ◽  
Poly Ethylene Glycol ◽  
Phase Transition Behavior ◽  
Transition Behavior ◽  
Microgel Particles ◽  
Poly Ethylene

Biomolecularly stimuli-responsive tetra-poly(ethylene glycol) that undergoes sol–gel transition in response to a target biomolecule

2017 ◽  
Vol 8 (41) ◽  
pp. 6378-6385 ◽  
Author(s):  
Chisa Norioka ◽  
Kazuma Okita ◽  
Miho Mukada ◽  
Akifumi Kawamura ◽  
Takashi Miyata
Keyword(s):  
Phase Transition ◽  
Ethylene Glycol ◽  
Sol Gel ◽  
Stimuli Responsive ◽  
Poly Ethylene Glycol ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Sol Gel Transition ◽  
Poly Ethylene ◽  
Gel Transition

We designed biotin-conjugated four-armed poly(ethylene glycol) (biotinylated Tetra-PEG) as biomolecularly stimuli-responsive polymers that underwent the phase transition from a sol to a gel state in response to avidin as a target biomolecule.

Crystalline-Amorphous Phase Transition of Poly(ethylene Glycol)/Cellulose Blend

1995 ◽  
Vol 28 (19) ◽  
pp. 6551-6555 ◽  
Author(s):  
Xue-Hai Liang ◽  
Yuan-Qiang Guo ◽  
Lian-Zhen Gu ◽  
En-Yong Ding
Keyword(s):  
Phase Transition ◽  
Ethylene Glycol ◽  
Amorphous Phase ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Understanding Thermal Behavior of Poly(ethylene glycol)-block-poly(N-isopropylacrylamide) Hydrogel Using Two-Dimensional Correlation Infrared Spectroscopy

2021 ◽  
pp. 000370282110066
Author(s):  
Yeonju Park ◽  
Minkyoung Kim ◽  
Isao Noda ◽  
Young Mee Jung
Keyword(s):  
Phase Transition ◽  
Ethylene Glycol ◽  
Heating Process ◽  
Two Dimensional ◽  
Poly Ethylene Glycol ◽  
Thermoresponsive Polymers ◽  
Heating And Cooling ◽  
Transition Mechanism ◽  
Ft Ir ◽  
Poly Ethylene

In this study, one of the thermoresponsive polymers, block copolymer consisting of poly(ethylene glycol) and poly( N-isopropylacylamide), was investigated using Fourier transform infrared (FT-IR) spectroscopy, principal component analysis (PCA), and two-dimensional correlation spectroscopy (2D-COS). The apparent trend of the spectral changes in the temperature-dependent FT-IR spectra of poly(ethylene glycol)- block-poly( N-isopropylacylamide) (PEG- b-PNiPAAm) hydrogel during the heating process looks similar to that during the cooling process. The results of the PCA and 2D-COS, however, clearly indicate an irreversible phase transition mechanism of PEG- b-PNiPAAm hydrogel during the heating and cooling processes. It has been also shown that PEG affects the phase transition mechanism of PEG- b-PNiPAAm hydrogel, especially during the heating process. Consequently, we can successfully determine the phase transition temperature and the mechanism of PEG- b-PNiPAAm hydrogel during the heating and cooling processes using PCA and 2D-COS, respectively.

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