ISSN:
0887-6266
Keywords:
poly(ethylene oxide) doped with neodymium acetate, thermal behavior and morphology of
;
rare earth metal salt Nd (Act)3 as dopant in PEO
;
morphology of neodymium acetate-PEO system
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Samples of poly(ethylene oxide), PEO, doped with neodymium acetate, Nd (Act)3, were prepared and found to be microphase separated. At an EO/Nd (Act)3 molar ratio no less than 4, wide-angle x-ray diffraction (WAXD) patterns and small-angle x-ray scattering (SAXS) data suggest that bulk Nd (Act)3 and ionic clusters are both absent. It is inferred from differential scanning calorimetry (DSC) thermograms that in the presence of PEO, Nd (Act)3 forms an amorphous phase which is different from the amorphous phase formed by Nd (Act)3 alone. The tighter binding of CH3COO- to Nd3+, in comparison to Cl-, appears to be responsible for the lack of true dissolution of Nd (Act)3 in PEO, a behavior clearly distinct from a number of polymer-metal salt complexes reported in the literature. © 1993 John Wiley & Sons, Inc.
Additional Material:
10 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/polb.1993.090310604
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