Probing hydrophobic microdomains of hydrophobically associating acrylamide-N-alkylacrylamide copolymers in solution using a solvatochromic absorption dye probe

Autor:	Neil Brons, Ramesh Varadaraj, Sal Pace, Jan Bock
Rok vydání:	1993
Předmět:	chemistry.chemical_classification endocrine system Chemistry Solvatochromism General Engineering Polymer Mole fraction Hydrophobe chemistry.chemical_compound Chemical engineering Pulmonary surfactant Acrylamide Polymer chemistry Copolymer Physical and Theoretical Chemistry Absorption (chemistry)
Zdroj:	The Journal of Physical Chemistry. 97:12991-12994
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100151a056
Popis:	Hydrophobically associating water-soluble copolymers of acrylamide and an N-alkylacrylamid, containing a small mole fraction of the N-alkylacrylamide, aggregate in aqueous media forming hydrophobic microdomains. Using the solvatochromic water-insoluble pyridinium-N-phenoxide betaine dye {ET(30)}, the hydrophobic microdomains of these hydrophobically associating polymers were probed. Changes in the hydrophobicity of the microdomains due to variation in hydrophobe chain length, level of incorporation, and addition of surfactant were monitored by measurement of shifts in λ(max) of the solubilized dye probe. A comparison of the absorption probe data with the rheological behavior is also provided
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e47627a6072ca6bacef427677c999cff https://doi.org/10.1021/j100151a056 Zobrazit plný text záznamu