NDLI: Rigidity of the crystals of thermo-sensitive gel spheres of poly (N-isopropyl acrylamide) in the deionized aqueous media as studied by the reflection spectroscopy in the sedimentation equilibrium

Content Provider	Springer Nature Link
Author	Okubo, Tsuneo Suzuki, Daisuke
Copyright Year	2013
Abstract	Reflection spectroscopy of deionized suspensions of the thermo-sensitive gels of poly (N-isopropylacrylamide) with various degrees of cross-linking were made in the sedimentation equilibrium at 20 °C. Rigidity of the crystals increased as sphere concentration increased and increased slightly as the degree of the cross-linking of the gel spheres increased. The fluctuation parameters of the gel crystals were between 0.05 and 0.07 and slightly larger than those of typical hard-sphere systems. These experimental results emphasize that the gel crystals are soft compared with those of typical hard-sphere systems and role of the extended electrical double layers for the crystallization of gel spheres is important but weak compared with that of hard colloidal spheres.
Starting Page	1721
Ending Page	1727
Page Count	7
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	291
Issue Number	7
e-ISSN	14351536
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-01-24
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gel crystal Thermo-sensitive gels Poly(N-isopropylacrylamide) Crystal rigidity Electrical double layer Fluctuation parameter Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry Food Science
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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Colloidal crystallization of thermo-sensitive gel spheres of poly (N-isopropyl acrylamide)

Thermo-sensitive colloidal crystals composed of monodisperse colloidal silica- and poly(N-isopropyl acrylamide) gel spheres

Colloidal crystallization of thermo-sensitive gel spheres of poly (N-isopropyl acrylamide). Influence of degree of cross-linking of the gels

Colloidal crystallization of thermo-sensitive gel spheres of poly (N-isopropyl acrylamide). Influence of gel size

Kinetic studies of colloidal crystallization of thermo-sensitive gel spheres of poly(N-isopropylacrylamide)

Drying dissipative structures of thermo-sensitive gel spheres of poly(N-isopropylacrylamide) with low degree of cross-linking

Drying dissipative structures of thermosensitive gel spheres of poly (N-isopropylacrylamide). Influence of gel size

Thermo-sensitive colloidal crystals of silica spheres in the presence of large spheres with poly (N-isopropyl acrylamide) shells

Drying dissipative structures of thermo-sensitive gel spheres of poly(N-isopropylacrylamide)

Rigidity of the crystals of thermo-sensitive gel spheres of poly (N-isopropyl acrylamide) in the deionized aqueous media as studied by the reflection spectroscopy in the sedimentation equilibrium

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Colloidal crystallization of thermo-sensitive gel spheres of poly (N-isopropyl acrylamide)

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