Dear Professors,

 

On behalf of the Heller Group, Visiting Scholar Professor Michael Herman of Tulane University, will be presenting the first Theory Seminar next Monday, 24 November from 4-5pm in the Division Room (Mallinckrodt 102).  Please encourage your group members to attend.

 

 

 

Accounting for Correlated Many Chain Motions in the Dynamics of Polymers in the Melt

Michael F. Herman

Department of Chemistry

Tulane University

New Orleans, LA 70118

 

Abstract:

A theory of melt polymer dynamics that accounts for correlated many chain motions is developed.  It is shown that this theory reproduces the experimentally observed molecular weight dependence of the diffusion constant and the viscosity for linear chains and rings.  Results for the relaxation in monodisperse and bidisperse melts are also presented.  The short time, short chain motion of the polymer chains, calculated from force field molecular dynamics, are used in the theory to predict the long time, long chain diffusion without adjustable parameters.

 

Our next seminar will be presented by Dr. Jingzhi Pu of the Karplus Group on Tue 9 Dec at 4:15pm.  An announcement will be sent in early December.

 

Thank you!

Anna

--
Anna B. Shin
Aspuru-Guzik Group Administrator
Department of Chemistry and Chemical Biology
Harvard University
12 Oxford Street
Cambridge, MA 02138

617.496.9964 phone
617.496.9411 fax
anna@chemistry.harvard.edu

Aspuru-Guzik Group URL: http://aspuru.chem.harvard.edu/