TY  - JOUR
AU  - Zinn, T.
AU  - Willner, L.
AU  - Lund, R.
AU  - Pipich, V.
AU  - Richter, D.
TI  - Equilibrium exchange kinetics in n-alkyl-PEO polymeric micelles: single exponential relaxation and chain length dependence
JO  - Soft matter
VL  - 8
SN  - 1744-683X
CY  - Cambridge
PB  - Royal Society of Chemistry (RSC)
M1  - PreJuSER-18975
SP  - 623 - 626
PY  - 2012
N1  - Record converted from VDB: 12.11.2012
AB  - In this communication we present first results on the chain exchange kinetics of n-alkyl-PEO polymeric micelles by time-resolved small angle neutron scattering. We found that the rate strongly depends on the alkyl-chain length and that the relaxation function almost perfectly follows the single exponential decay predicted by theory. The key achievement of this study is the experimental verification that core block polydispersity accounts for the almost logarithmic time decay in block copolymer micelles as recently suggested by Choi et al. The results thus directly show that unimer exchange is the main mechanism for molecular exchange in block copolymer micelles.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000301793700005
DO  - DOI:10.1039/c1sm06809a
UR  - https://juser.fz-juelich.de/record/18975
ER  -