Short-Time Interdiffusion at Polymer Interfaces

Understanding the dynamics of entangled polymer chains in the melt is of great fundamental interest as well as practical importance. Studies provide support for the existence of topological constraints and the Rouse-like retraction dynamics of a chain along its own length but do not confirm reptatio...

Full description

Saved in:
Bibliographic Details
Published in:Macromolecules 1994-07, Vol.27 (15), p.4407-4409
Main Authors: Agrawal, G, Wool, R. P, Dozier, W. D, Felcher, G. P, Russell, T. P, Mays, J. W
Format: Article
Language:English
Subjects:
360602 - Other Materials- Structure & Phase Studies
400201 - Chemical & Physicochemical Properties
Applied sciences
COHERENT SCATTERING
DATA
DIFFRACTION
DIFFUSION
Exact sciences and technology
EXPERIMENTAL DATA
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
INTERFACES
MATERIALS
MATERIALS SCIENCE
Miscellaneous
NEUTRON DIFFRACTION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
Physicochemistry of polymers
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
Properties and characterization
SCATTERING
SELF-DIFFUSION
SYNTHETIC MATERIALS
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Understanding the dynamics of entangled polymer chains in the melt is of great fundamental interest as well as practical importance. Studies provide support for the existence of topological constraints and the Rouse-like retraction dynamics of a chain along its own length but do not confirm reptation dynamics. In this paper, the authors present the results of neutron reflectivity experiments designed to examine the motion of polymer chains at t < [tau][sub d] and at penetration depths X < R[sub g] (radius of gyration). They reported the results of interdiffusion between thin film layers of polystyrene triblocks. These polymers are symmetric triblocks composed of segments of polystyrene d[sub 8] (dPS) and (normal) polystyrene-h[sub 8] (PS).
ISSN:0024-9297
1520-5835
DOI:10.1021/ma00093a050