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Title
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Phosphorane Polymers. Part I.
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Date
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1964
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Index Abstract
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Not Available
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Photo Quality
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Undetermined
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Report Number
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ML TDR 64-181 Part 1
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Creator
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Baldwin, Roger A.
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Billig, Franklin A.
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Corporate Author
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American Potash and Chemical Corporation
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Date Issued
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1964-07-31
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Extent
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75
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Identifier
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AD0445844
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Access Rights
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Unknown
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Distribution Classification
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1
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DTIC Record Exists
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No
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Distribution Change Authority Correspondence
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AFML LTR
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Abstract
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Initial preparations of polyphosphorane polymers based on phenylphosphonyl diazide and several bis-tertiary phosphines were carried out. The thermal stability of the polymer based upon an aromatic linked bis-tertiary phosphine was found to be considerably higher than that of the corresponding methylene-linked polymers (approximate beginning of decomposition at 477 C. and 278 C., respectively). In addition, a series of mono-and bisphosphon-, sulfon-, and silylimidophosphorane polymer prototypes has been prepared. Thermal and hydrolytic properties of these materials have been investigated. Bis-phosphoranes based upon p-phenylene and 4,4'-biphenylene bistertiary phosphines were found to have the highest approximate beginnings of decomposition (by differential thermal analysis) of approximately 465 C. and 460-475 C. Various functionally substituted phosphoranes were also prepared in order to investigate potential methods for the cross-linking of phosphorane chains as well as to investigate methods for the synthesis of desired intermediates.
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Report Availability
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Full text available by request
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Provenance
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Agricultural Research Service Southern Region Research Center
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Type
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report
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Format
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75 pages ; 28 cm.