Controlled Synthesis of Novel Metalated Poly(aminohexyl)-(aminopropyl)silsesquioxane Colloids

Autor:	Irina A. Khotina, Lyudmila M. Bronstein, Ulrike Werner-Zwanziger, Christina Linton, M. B. Kozin, Robert L. Karlinsey, Earl Ashcraft, Barry Stein, Josef W. Zwanziger, Richard J. Spontak, Dimitri I. Svergun
Rok vydání:	2003
Předmět:	chemistry.chemical_classification Protonation Surfaces and Interfaces Polymer Condensed Matter Physics Silsesquioxane Solvent chemistry.chemical_compound Colloid chemistry Polymerization Polymer chemistry Electrochemistry General Materials Science Lamellar structure Solubility Spectroscopy
Zdroj:	Langmuir. 19:7071-7083
ISSN:	1520-5827 0743-7463
DOI:	10.1021/la034291b
Popis:	A new family of polysilsesquioxanes colloids was synthesized by hydrolytic condensation of a functionalized precursor N-(6-aminohexyl)aminopropyltrimethoxysilane (AHAPS), H2N(CH2)6NHCH2CH2CH2Si(OCH3)3, and studied using small-angle X-ray scattering, transmission electron microscopy, liquid and solid state NMR, elemental analysis, and other methods. The PAHAPS (polymerized AHAPS) structure is highly functionalized and its functionality can be varied by protonation of the amino groups. This allows varying the local ordering in the PAHAPS colloids, including formation of highly ordered lamellar structures when the AHAPS precursor is hydrolyzed in pure water. By varying the type of solvent (water or THF), one can vary the macrostructure and properties (for example, to impart colloidal solubility) of PAHAPS. These features make PAHAPS a robust polymer material synthesized in a one-pot reaction procedure. As amino groups (protonated or not) easily interact with the majority of transition-metal compounds, PAHAPS...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b9b9f8d8ab78d173aba92b0b01957db3 https://doi.org/10.1021/la034291b Zobrazit plný text záznamu