Title : Chain-length dependence of diblock copolymer micellization kinetics studied by stopped-flow pH-jump.

Pub. Date : 2008 Sep 11

PMID : 18707086






4 Functional Relationships(s)
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1 A series of well-defined poly(ethylene oxide)- b-poly(2-(diethylamino)ethyl methacrylate) (PEO- b-PDEA) diblock copolymers containing PEO block of identical chain length and PDEA block with varying degrees of polymerization (DP, in the range of 32-154) were prepared via atom transfer radical polymerization (ATRP) employing a PEO-based macroinitiator (DP = 113). copolymers phosphodiesterase 6A Homo sapiens
2 Upon a pH-jump from 3 to 12 under highly efficient stopped-flow mixing conditions, PEO- b-PDEA copolymers spontaneously form spherical micelles of increasing sizes and aggregation numbers ( N agg) with increasing PDEA chain lengths. copolymers phosphodiesterase 6A Homo sapiens
3 Upon a pH-jump from 3 to 12 under highly efficient stopped-flow mixing conditions, PEO- b-PDEA copolymers spontaneously form spherical micelles of increasing sizes and aggregation numbers ( N agg) with increasing PDEA chain lengths. copolymers phosphodiesterase 6A Homo sapiens
4 It was found that during micellization, copolymers with longer PDEA blocks exhibit much lower E a compared to those with shorter blocks. copolymers phosphodiesterase 6A Homo sapiens