%0 Journal Article
%A Le Coeur, C.
%A Teixeira, J.
%A Busch, P.
%A Longeville, S.
%T Compression of random coils due to macromolecular crowding: Scaling effects
%J Physical review / E
%V 81
%N 6
%@ 1539-3755
%C College Park, Md.
%I APS
%M PreJuSER-9932
%P 061914
%D 2010
%Z Record converted from VDB: 12.11.2012
%X The addition of a macromolecular crowding agent to a dilute solution of polymer exerts a compressive force that tends to reduce the size of the chain. We study here the effect of changing the size ratio between the random coil and the crowding agent. The compression occurs at lower crowding agent concentration, Phi when polymer molecular weight increases. The Flory exponent nu(Phi) decreases from nu(0)similar or equal to 0.48 in water down to 0.3 with macromolecular crowding. The effective polymer-polymer interactions change from repulsive to strongly attractive inducing aggregation of the chains. This effect changes drastically for larger polymer sizes, being much more pronounced at high molecular weights.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000278657500001
%R 10.1103/PhysRevE.81.061914
%U https://juser.fz-juelich.de/record/9932