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Irradiation‐modification of starch‐containing thermoplastic blends. II. Rheological studies
Author(s) -
Sagar Ambuj D.,
Villar Marcelo A.,
Thomas Edwin L.,
Armstrong Robert C.,
Merrill Edward W.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960705)61:1<157::aid-app17>3.0.co;2-4
Subject(s) - starch , amylose , rheology , materials science , thermoplastic , polymer , irradiation , polymer chemistry , polyethylene , chemical engineering , viscosity , vinyl alcohol , polymer blend , chemical modification , polymer science , composite material , copolymer , chemistry , organic chemistry , physics , nuclear physics , engineering
This study involves an examination of the changes in the rheological behavior (specifically the non‐Newtonian viscosity) of blends of various starches with a synthetic polymer (polyethylene‐ co ‐vinyl alcohol) as a result of irradiation‐modification. The results are generally consistent with fact that starch degrades substantially upon irradiation, while the synthetic polymer is relatively unaffected. However, the high‐amylose starch‐containing blends are less sensitive to irradiation than we would expect; this is attributed to possible interactions between the linear molecules from the high‐amylose starch and the synthetic polymer. © 1996 John Wiley & Sons, Inc.