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Viscoelastic properties of alkyd ceramers
Author(s) -
Sailer Robert A.,
Soucek Mark D.
Publication year - 1999
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(19990906)73:10<2017::aid-app20>3.0.co;2-1
Subject(s) - alkyd , phthalic anhydride , dynamic mechanical analysis , materials science , viscoelasticity , polymer chemistry , sunflower oil , chemical engineering , composite material , polymer , chemistry , organic chemistry , coating , catalysis , food science , engineering
The viscoelastic behavior of three alkyd ceramers was studied using dynamic mechanical thermal analysis (DMTA). A commercial product was compared to model alkyds. The model alkyds were prepared from phthalic anhydride, glycerol, and linseed or sunflower seed oil. Three sol–gel precursors, titanium tetra‐ i ‐propoxide, titanium di‐ i ‐propoxide diacetylacetonate, and zirconium tera‐ n ‐propoxide were investigated. The alkyd ceramers were evaluated as a function of both alkyd type and a sol–gel precursor content. The viscoelastic data showed that both E ′ and T g were affected by sol–gel precursor content. Both the crosslink density and T g demonstrated a minimum at low sol–gel precursor contents. After this minimum, both the crosslink density and the T g increased substantially. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 2017–2028, 1999