DOI: 10.1111/j.1151-2916.1991.tb06794.x. Phase Separation in Gelling Silica–Organic Polymer Solution: Systems Containing Poly(sodium styrenesulfonate)

Phase Separation in Gelling Silica–Organic Polymer Solution: Systems Containing Poly(sodium styrenesulfonate)

10.1111/j.1151-2916.1991.tb06794.x

Crossref journal-article

Wiley

Journal of the American Ceramic Society (311)

Abstract

Phase separation which occurs in parallel to the hydrolysis and gelation of alkoxysilane solution containing poly(sodium styrenesulfonate) (NaPSS) has been investigated. Depending on the reaction conditions, gel morphologies such as isolated pores, particle aggregates, and interconnected continuous pores from 0.1 to 100 μm long have been observed. Time‐resolved light scattering of gelling solution suggested the occurrence of spinodal phase separation through the polymerization of silica and the subsequent freezing of the developing structure by sol‐gel transition. The effects of reaction parameters on the periodic size are explained mainly in terms of their influence on the “chemical cooling” rate which is determined by the polymerizatica rate of silica and the solubility of NaPSS in the reacting solution.

Bibliography

Nakanishi, K., & Soga, N. (1991). Phase Separation in Gelling SilicaâOrganic Polymer Solution: Systems Containing Poly(sodium styrenesulfonate). Journal of the American Ceramic Society, 74(10), 2518â2530. Portico.

Authors 2

Kazuki Nakanishi (first)
Naohiro Soga (additional)

References 25 Referenced 373

H. P.HoodandM. E.Nordberg “Method of Treating Borosilicate Glasses ” U.S. Pat. No. 2215039 Sept. 17 1940.
{'key': 'e_1_2_1_3_2', 'first-page': '1', 'volume-title': 'Better Ceramics through Chemistry', 'author': 'Schaefer D. W.', 'year': '1984'} / Better Ceramics through Chemistry by Schaefer D. W. (1984)
{'key': 'e_1_2_1_4_2', 'first-page': '57', 'volume-title': 'Polymer‐Based Molecular Composites', 'author': 'Schaefer D. W.', 'year': '1990'} / Polymer‐Based Molecular Composites by Schaefer D. W. (1990)
{'key': 'e_1_2_1_5_2', 'first-page': '981', 'volume-title': 'Better Ceramics Through Chemistry IV', 'author': 'Chung Y. J.', 'year': '1990'} / Better Ceramics Through Chemistry IV by Chung Y. J. (1990)
H.KozukaandS.Sakka “Formation of Highly Porous Opaque Gels from Alkoxysilane Solutions ”Chem. Lett. 1791–94(1987). (10.1246/cl.1987.1791)
10.1016/B978-0-12-404503-3.50010-0 / J. Colloid Interf. Sci. / Controlled Pore Silica Bodies Gelled from Silica Sol–Alkali Silicate Mixtures by Shoup R. D. (1976)
K.Nakanishi N.Soga H.Matsuoka andN.Ise “SAXS Studies of Gelling Silica–Organic Polymer Solution: System Containing Poly(sodium styrenesulfonate) ”J. Am. Ceram. Soc. in review.
10.1016/0022-3093(89)90578-4
10.1021/ma00238a030
10.1246/bcsj.64.1283
{'key': 'e_1_2_1_12_2', 'volume-title': 'The Chemistry of Silica', 'author': 'Iler R. K.', 'year': '1979'} / The Chemistry of Silica by Iler R. K. (1979)
10.1016/0022-3093(84)90382-X
10.1021/ma00143a009
{'key': 'e_1_2_1_15_2', 'first-page': '177', 'article-title': 'Morphology Control of Polymer Blends by a Chemical Pinning of Spinodal Decomposition', 'volume': '30', 'author': 'Hashimoto T.', 'year': '1989', 'journal-title': 'Polym. Commun.'} / Polym. Commun. / Morphology Control of Polymer Blends by a Chemical Pinning of Spinodal Decomposition by Hashimoto T. (1989)
10.1016/0032-3861(89)90355-8
{'key': 'e_1_2_1_17_2', 'volume-title': 'Principles of Polymer Chemistry', 'author': 'Flory P. J.', 'year': '1971'} / Principles of Polymer Chemistry by Flory P. J. (1971)
10.1016/0032-3861(89)90151-1
10.1002/polb.1989.090270807
{'key': 'e_1_2_1_20_2', 'volume-title': 'Multiphase Macromolecular Systems Symposium', 'author': 'Takenaka M.', 'year': '1989'} / Multiphase Macromolecular Systems Symposium by Takenaka M. (1989)
10.1063/1.451477
{'key': 'e_1_2_1_22_2', 'first-page': '181', 'article-title': 'The Initial Stages of Phase Separation in Glasses', 'volume': '6', 'author': 'Cahn J. W.', 'year': '1965', 'journal-title': 'Phys. Chem. Glasses'} / Phys. Chem. Glasses / The Initial Stages of Phase Separation in Glasses by Cahn J. W. (1965)
10.1016/0022-3093(84)90385-5
K.Nakanishi N.Soga T.Inoue andN.Nemoto; in preparation.
10.1016/0022-3093(85)90170-X
10.1016/S0022-3093(86)80078-3

Dates

Type	When
Created	20 years, 5 months ago (March 8, 2005, 12:15 p.m.)
Deposited	1 year, 8 months ago (Nov. 22, 2023, 9:25 p.m.)
Indexed	3 weeks, 5 days ago (July 26, 2025, 5:15 a.m.)
Issued	33 years, 10 months ago (Oct. 1, 1991)
Published	33 years, 10 months ago (Oct. 1, 1991)
Published Online	20 years, 5 months ago (March 8, 2005)
Published Print	33 years, 10 months ago (Oct. 1, 1991)

Funders 0

None

BibTeX

@article{Nakanishi_1991, title={Phase Separation in Gelling Silica–Organic Polymer Solution: Systems Containing Poly(sodium styrenesulfonate)}, volume={74}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.1991.tb06794.x}, DOI={10.1111/j.1151-2916.1991.tb06794.x}, number={10}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Nakanishi, Kazuki and Soga, Naohiro}, year={1991}, month=oct, pages={2518–2530} }

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