TY - JOUR
TI - Chain trapping in diblock copolymers near the ordering transition
AU - Anastasiadis, SH
AU - Rittig, F
AU - Chrissopoulou, K
AU - Fleischer, G and
AU - Fytas, G
AU - Semenov, AN
AU - Karger, J
AU - Xenidou, M
AU - Pispas, S and
AU - Hadjichristidis, N
JO - Europhysics Letters (EPL)
PY - 2000
VL - 51
TODO - 1
SP - 68-74
PB - E D P SCIENCES
SN - null
TODO - 10.1209/epl/i2000-00338-1
TODO - null
TODO - The mean-square displacement, <Delta r(2)>, of very high molecular
weight diblock copolymers in solutions near the disorder-to-order
transition is investigated by pulsed-field-gradient NMR. The
thermodynamic potential influencing the motion leads to a
time-independent <Delta r(2)> at short times followed by
free-diffusional behavior. The plateau is attributed to a trapping of
the copolymer chains at the “quasi-interfaces” formed by slow
composition fluctuations.
ER -