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On the similarity of macromolecular responses to high-energy processes: mechanical milling vs. irradiation
 

Summary: On the similarity of macromolecular responses to high-energy
processes: mechanical milling vs. irradiation
Archie P. Smith a,1
, Richard J. Spontak a,b
, Harald Ade c,
*
a
Department of Materials Science and Engineering, North Carolina State University, Raleigh NC 27695, USA
b
Department of Chemical Engineering, North Carolina State University, Raleigh NC 27695, USA
c
Department of Physics, North Carolina State University, Raleigh NC 27695, USA
Received 30 November 2000; received in revised form 10 January 2001; accepted 14 January 2001
Abstract
Recent efforts to blend and compatibilize intrinsically immiscible polymers in the solid state by high-energy methods have shown
that macromolecules may undergo scission, crosslinking or amorphization, depending on the chemical nature of the repeat unit, the
processing temperature and the initial degree of polymer crystallinity. Identical process-induced molecular and structural mod-
ifications have been previously observed in polymers exposed to large doses of electron and g radiation, suggesting that the
responses of polymers to high-energy processes may be mechanistically similar. In this work, we explore a variety of similarities
between mechanically-milled and irradiated polymers in terms of molecular characteristics, process temperature and polymer crys-

  

Source: Ade, Harald W.- Department of Physics, North Carolina State University

 

Collections: Physics