Co-Nonsolvency of Poly(n-isopropylacrylamide) in Deuterated Water/Ethanol Mixtures
Publication type: Journal Article
Publication date: 2013-09-25
scimago Q1
wos Q1
SJR: 1.352
CiteScore: 9.0
Impact factor: 5.2
ISSN: 00249297, 15205835
Materials Chemistry
Organic Chemistry
Inorganic Chemistry
Polymers and Plastics
Abstract
Small-angle neutron scattering was used to investigate poly(N-isopropylacrylamide) (PNIPAM) polymer solutions in d-water/d-ethanol mixtures. A wide poor-solvent region was observed for mixtures near 60% d-water/40% d-ethanol mixture. Spinodal lines were determined, permitting a mapping of the mixing/demixing regions of the phase diagram which comprises two main branches: the left branch (with mostly d-ethanol) where phase separation occurs upon cooling (UCST) and the right branch (with mostly d-water) where phase separation occurs upon heating (LCST). The ternary random phase approximation model was used to analyze SANS data. Three Flory–Huggins interaction parameters (PNIPAM/d-water, PNIPAM/d-ethanol and d-water/d-ethanol) were obtained. These display the reassuring 1/T behavior but show strong dependence on d-water/d-ethanol fraction. The conformation of polymer chains was determined by monitoring of the radius of gyration. Chains tend to swell with increasing temperature except close to the boundary of...
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110
Total citations:
110
Citations from 2024:
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(20.18%)
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GOST
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Hore M. J. A. et al. Co-Nonsolvency of Poly(n-isopropylacrylamide) in Deuterated Water/Ethanol Mixtures // Macromolecules. 2013. Vol. 46. No. 19. pp. 7894-7901.
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Hore M. J. A., Hammouda B., Li Y., Cheng H. Co-Nonsolvency of Poly(n-isopropylacrylamide) in Deuterated Water/Ethanol Mixtures // Macromolecules. 2013. Vol. 46. No. 19. pp. 7894-7901.
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RIS
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TY - JOUR
DO - 10.1021/ma401665h
UR - https://doi.org/10.1021/ma401665h
TI - Co-Nonsolvency of Poly(n-isopropylacrylamide) in Deuterated Water/Ethanol Mixtures
T2 - Macromolecules
AU - Hore, Michael J A
AU - Hammouda, Boualem
AU - Li, Yuyan
AU - Cheng, He
PY - 2013
DA - 2013/09/25
PB - American Chemical Society (ACS)
SP - 7894-7901
IS - 19
VL - 46
SN - 0024-9297
SN - 1520-5835
ER -
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BibTex (up to 50 authors)
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@article{2013_Hore,
author = {Michael J A Hore and Boualem Hammouda and Yuyan Li and He Cheng},
title = {Co-Nonsolvency of Poly(n-isopropylacrylamide) in Deuterated Water/Ethanol Mixtures},
journal = {Macromolecules},
year = {2013},
volume = {46},
publisher = {American Chemical Society (ACS)},
month = {sep},
url = {https://doi.org/10.1021/ma401665h},
number = {19},
pages = {7894--7901},
doi = {10.1021/ma401665h}
}
Cite this
MLA
Copy
Hore, Michael J. A., et al. “Co-Nonsolvency of Poly(n-isopropylacrylamide) in Deuterated Water/Ethanol Mixtures.” Macromolecules, vol. 46, no. 19, Sep. 2013, pp. 7894-7901. https://doi.org/10.1021/ma401665h.