NDLI: PH-sensitive nanostructured architectures based on synthetic and/or natural weak polyelectrolytes

Content Provider	Springer Nature Link
Author	Mihai, Marcela Stoica, Iuliana Schwarz, Simona
Copyright Year	2011
Abstract	This study aims to evidence the influence of polyelectrolytes structure and the number of double layers on the properties of some new nanostructured architectures formed by layer-by-layer self-assembly of complementary weak polyelectrolytes on planar surfaces. For this purpose, we used chitosan and poly(allylamine hydrochloride) as polycations, and poly(acrylic acid) and poly(2-acrylamido-2-methylpropanesulfonic acid–co-acrylic acid) as polyanions. To get a direct image on the polyelectrolyte multilayers formation and properties, gravimetry, infrared spectroscopy, and atomic force microscopy have been used. The capacity of the polyions to overcompensate the complementary polyions charges, and thus to influence the swelling degree in water of thin films, was strongly influenced by the chain structure and flexibility. A special attention was paid to the responsiveness of the new composite materials to the pH of the swelling environment.
Starting Page	1387
Ending Page	1396
Page Count	10
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	289
Issue Number	12
e-ISSN	14351536
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-06-11
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	pH-sensitive polymers Chitosan Surface modification Polyelectrolyte multilayer Swelling degree Polymer Sciences Physical Chemistry Soft and Granular Matter, Complex Fluids and Microfluidics Food Science Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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