PMID- 16471557 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20060821 LR - 20070323 IS - 1520-6106 (Print) IS - 1520-5207 (Linking) VI - 110 IP - 1 DP - 2006 Jan 12 TI - Self-consistent-field analysis of the micellization of carboxy-modified poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymers. PG - 465-77 AB - The micellization properties of carboxy-modified Pluronics P85 (poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) triblock copolymers) are investigated by means of a molecularly realistic self-consistent-field theory. We consider the, so-called, carboxylic acid end-standing P85 (CAE-85) case where the carboxylic group is located at the end of both PEO parts and the carboxylic acid center-standing P85 (CAC-85) case where each of the carboxylic group presents between the PEO and PPO blocks. The micellization of these copolymers depends on the pH, the added electrolyte concentration phis, and the temperature. It is shown that the aggregation number (Nagg) decreases, whereas the critical micellization concentration (CMC) increases with pH. For the case of increasing phis, the Nagg increases and the CMC decreases. The critical micellization temperature (CMT) and cloud point temperature (CPT) increase with pH at low phis and decrease at increasing phis. The changing from CAE-85 to CAC-85 leads to increasing CMC and CMT, but lower CPT. FAU - Lauw, Y AU - Lauw Y AD - Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, Wageningen 6700 EK, The Netherlands. FAU - Leermakers, F A M AU - Leermakers FA FAU - Cohen Stuart, M A AU - Cohen Stuart MA LA - eng PT - Journal Article PL - United States TA - J Phys Chem B JT - The journal of physical chemistry. B JID - 101157530 EDAT- 2006/02/14 09:00 MHDA- 2006/02/14 09:01 CRDT- 2006/02/14 09:00 PHST- 2006/02/14 09:00 [pubmed] PHST- 2006/02/14 09:01 [medline] PHST- 2006/02/14 09:00 [entrez] AID - 10.1021/jp053795a [doi] PST - ppublish SO - J Phys Chem B. 2006 Jan 12;110(1):465-77. doi: 10.1021/jp053795a.