Title of article
Solid-state NMR study of aging of Colorbond polymer coating
Author/Authors
Separovic، نويسنده , , F. and Chau، نويسنده , , H.D. and Burgar، نويسنده , , M.I.، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2001
Pages
6
From page
925
To page
930
Abstract
The effect of weather and aging on the properties of polymer coatings was studied using solid-state NMR spectroscopy. Colorbond polymer coatings were aged in an accelerated weathering tester and 13C NMR spectra were obtained. NMR relaxation times (13C T1, 1H T1, T1ρ) and line width were measured to study the changes in dynamics and structure of the polymer coating due to the effect of UV light and weathering. No changes in chemical shift were observed between fresh and aged polymer coating. A difference in 13C T1 and a small change in cross-polarization time between fresh and aged samples were observed. These changes in molecular mobility may be useful in understanding the physical effects of aging and correlating changes in NMR relaxation times to weathering of polymer coatings.
Keywords
Polymer Coating , Molecular mobility , solid-state NMR
Journal title
Polymer
Serial Year
2001
Journal title
Polymer
Record number
1713163
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