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X‐ray diffraction curves for a system of parallel cylinders with liquid‐like order: A model for the diffraction of crazed polymers
Author(s) -
Paredes E.,
Colonomos P.
Publication year - 1981
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889881009680
Subject(s) - diffraction , polycarbonate , polymer , monte carlo method , radial distribution function , materials science , x ray crystallography , order (exchange) , distribution function , crystallography , molecular physics , optics , physics , molecular dynamics , composite material , thermodynamics , chemistry , computational chemistry , mathematics , statistics , finance , economics
As a model for the internal structure of polymer crazes, a system of parallel cylinders with liquid‐like order is proposed. X‐ray diffraction curves were calculated for such a system with Monte Carlo data for the radial distribution function of the two‐dimensional hard‐disk fluid at different packing densities. A comparison is made between the present calculations and experimental results of crazed polycarbonate showing a very good agreement. A way of evaluating the average craze fibril diameter with the calculations is also discussed.