Next Talks


  • April 24, 2020
  • Speaker: Kenneth C Millett

Title: Entanglement of Polymers

Abstract:

Entanglement in polymeric systems has been central theme since, at least, the work of Sir Sam Edwards, Pierre-Gilles de Gennes, and Jacques des Cloizeaux in the 60’s. Beginning with a somewhat historical discussion tracing these early developments, I will sketch some key elements that have catalyzed my own polymer physics research before focusing polymer gels and the seminal theory of Eleni Panagiotou on polymer entanglement in periodic boundary system models of polymer gels. I will then trace how her dissertation lead to a fruitful collaboration with me and others some whose results will be described next. These concern, time permitting, ideal systems, polyethylene gels, one-dimensional systems, the determination of entanglement length, linking matrices associated to gels, and the relationship between entanglement and viscoelasticity.

Keywords:

polymer, gel, entanglement, Gauss linking integral, periodic boundary systems, excluded volume, reptation, linking matrix, entanglement length, viscoelasticity, oscillatory shear




  • May 15, 2020
  • Speaker: Javier Arsuaga

Title: TBA


STREAMING TIME:

  •   8 am (Los Angeles)  
  •   10 am (Mexico City)  
  •   11 pm (New York)      
  •   4 pm (London)          
  •   5 pm (Paris)              
  •   6 pm (Moscow)        
  •   11 pm (Beijing)          
  •   12 am (Tokyo)