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vol.45 número4CHEMICAL CHARACTERIZATION OF A MUNICIPAL LANDFILL AND ITS INFLUENCE ON THE SURROUNDING ESTUARINE SYSTEM, SOUTH CENTRAL CHILECARACTERIZACION Y SEPARACION DE UNA ESTILBITA ORIGINARIA DE LA REGION DE ATACAMA, CHILE índice de autoresíndice de assuntospesquisa de artigos
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Boletín de la Sociedad Chilena de Química

versão impressa ISSN 0366-1644

Resumo

BARRAZA, RAUL G.  e  MARTINEZ, ROCIO. DETERMINATION OF THE COUNTERION-POLYION PARAMETER FOR MALEIC ACID-OLEFIN COPOLYMERS.: EFFECTOF THE ALKYL SIDE CHAIN LENGTH. Bol. Soc. Chil. Quím. [online]. 2000, vol.45, n.4, pp.563-568. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442000000400006.

ABSTRACT The interaction between a polyion and its counterion has been studied for a series of potassium salts of poly(maleic acid-co-vinyl-n-alkyl), PA-nK2, with n=8,10,12, 14 and 16 carbon atoms in the side chain. The polyion-counterion interaction parameter was determined from electrical conductivity measurement. This parameter is a function of the side chain length, and its variation is ascribed to a change in the average distance between charges

Palavras-chave : amphipatic polyelectrolytes; electrical conductivity; interaction parameter; polyelectrolyte hydrophobic microdomains; Manning’s theory.

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