caa a22 4500 475765028 CHVBK 20180406123603.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1007/s003960000377 doi (NATIONALLICENCE)springer-10.1007/s003960000377 Bokias G. Department of Chemical Engineering University of Patras and Institute of Chemical Engineering and High Temperature Processes ICE/HT-FORTH, P.O. Box 1414 26500 Patras, Greece e-mail: bokias@chemeng.upatras.gr Fax: +30-61-997266, GR aut Investigation of the association in water of sodium dodecyl sulfate with a positively charged copolymer based on N  -isopropylacrylamide [Elektronische Daten] [G. Bokias] The interactions of sodium dodecyl sulfate with a positively charged copolymer based on N-isopropylacrylamide (NIPAM) have been investigated in aqueous solution by turbidimetric and viscometric measurements. The copolymer contains mainly NIPAM and only 5 mol % of the charged comonomer [3-(methacryloylamino)propyl]-dimethyloctylammonium bromide. The polymer-surfactant complex is insoluble for mixture compositions near to the charge stoichiometry, while it exhibits lower critical solution temperature behavior for mixtures with an excess of polymer or surfactant. In the case of surfactant excess, the transition from an expanded coil to a globular state upon heating has been observed by viscometry. Springer-Verlag Berlin Heidelberg, 2000 Key words Poly(N-isopropylacrylamide) nationallicence Sodium dodecyl sulfate nationallicence Lower critical solution temperature nationallicence Coil-to-globule transition nationallicence https://doi.org/10.1007/s003960000377 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960000377 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Bokias G. Department of Chemical Engineering University of Patras and Institute of Chemical Engineering and High Temperature Processes ICE/HT-FORTH, P.O. Box 1414 26500 Patras, Greece e-mail: bokias@chemeng.upatras.gr Fax: +30-61-997266, GR aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer