By Mark D. Dadmun, W. Alexander Van Hook, Donald W. Noid, Yuri B. Melnichenko, Robert G. Sumpter
This article is the printed model of many ofthe talks awarded at symposiums held as a part of the Southeast local assembly of the yankee Chemical Society (SERMACS) in Knoxville, TN in October, 1999. The Symposiums, entitled resolution Thermodynamics of Polymers and Computational Polymer technological know-how and Nanotechnology, supplied retailers to offer and talk about difficulties of present curiosity to polymer scientists. It was once, hence, determined to submit either complaints in one quantity. the 1st a part of this assortment comprises revealed types of six of the 10 talks offered on the Symposium on resolution Thermodynamics of Polymers geared up by means of Yuri B. Melnichenko and W. Alexander Van Hook. the 2 periods, extra defined under, motivated fascinating and provocative discussions. even if no longer each writer selected to give a contribution to the complaints quantity, the papers which are incorporated faithfully symbolize the scope and caliber of the symposium. the remainder sections are in accordance with the symposium on Computational Polymer technological know-how and Nanotechnology equipped by means of Mark D. Dadmun, Bobby G. Sumpter, and Don W. Noid. a various and special workforce of polymer and fabrics scientists, biochemists, chemists and physicists met to debate fresh study within the huge box of computational polymer technological know-how and nanotechnology. The two-day oral consultation was once additionally complemented via a couple of poster displays. the 1st article of this part is at the vital topic of polymer blends. M. D.
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Extra resources for Computational Studies Nanotechnology and Solution Thermodynamics of Polymer Systems
Fluctuating hydrodynamics predicts that the concentration fluctuations will couple with the transverse-velocity fluctuations through the induced concentration gradient. This coupling leads to an enhancement of the concentration fluctuations when the transverse-velocity fluctuations have a component in the direction of the concentration gradient. Hence, the nonequilibrium enhancement reaches a maximum for concentration fluctuations with a wave vector k perpendicular to the concentration gradient.
8) [4,9]. If all chains are protonated (x= 1), the prefactor K- 0, and one obtains [ (T,P) directly from I(Q,x=1) ~ St(Q) using the OrnsteinZernike formula: StQ) = S (0)/(1+ Q2 [ 2) . 06 were obtained from Polymer Laboratories, USA. PS-h (Mw = 22200, 73000) was obtained from Polymer Source, Canada. 03) were synthesized and characterized at the Max Planck Institute for Polymer Research, Germany. 3) was purchased from Polymer Standards Service GmbH, Mainz, Germany. 995 were obtained from Sigma Chemical and dried over molecular sieves 18 prior to preparing solutions.
Lacombe, J. Phys. , 80:2352 (1976). (10) ) G. T. Dee and B. B. Sauer, J. Colloid Interface Sci. , 152:85 (1992). T. J. Walsh, Macromolecules, 21: 811 (1988). (12) D. K. Rastogi, J. Phys. , 74:1067 (1970). (13) G. T. Dee and B. B. Sauer, POLYMER, Vol. 8, 1673, (1995). G. J. Flory, J. Polym. , 14:315 (1954). (15) K. M. Hong and J. Noolandi, Macromolecules, 14:1223 (1981). (16) K. M. Hong and J. Noolandi, Macromolecules, 14:1229 (1981). V. M. Ortiz de Zárate3 Institute for Physical Science and Technology University of Maryland, College Park, MD 20742, USA 2Department of Chemical Engineering University of Maryland, College Park, MD 20742, USA 3 Facultad de Ciencias Fisicas Universidad Complutense, 28040 Madrid, Spain 1 INTRODUCTION Concentration fluctuations in polymer solutions that are in thermal equilibrium are well understood.
Computational Studies Nanotechnology and Solution Thermodynamics of Polymer Systems by Mark D. Dadmun, W. Alexander Van Hook, Donald W. Noid, Yuri B. Melnichenko, Robert G. Sumpter