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ARS Home » Southeast Area » New Orleans, Louisiana » Southern Regional Research Center » Cotton Chemistry and Utilization Research » Research » Publications at this Location » Publication #157925

Title: Phosphonate-Functionalized Trimethyoxysilane and Its Copollymerization

item Gallagher, Skip

Submitted to: Polymer Preprints
Publication Type: Proceedings
Publication Acceptance Date: 8/1/2004
Publication Date: 9/30/2004
Citation: Gallagher, S. 2004. Phosphonate-Functionalized Trimethyoxysilane and Its Copollymerization. Polymer Preprints. 45(1):565-566.

Interpretive Summary: Several novel compounds containing silicon and phosphorus have been developed for incorporation in network polymers. These materials prove to be thermally stable when polymerized and their ability to combine with a wide range of commercially available silanes permits the development of a variety of 3-dimensional systems. The thermal stability of polysiloxanes in combination with organo-phosphorus pendant groups results in a family of flame retardant materials. These compounds can be further developed to yield a diverse group of products including thin films, semiconducting polymers and xerogels. Application to cotton textiles will produce flame retardant finishes necessary for improving cotton sales in children sleepwear, fleece fabric and bedding.

Technical Abstract: The synthesis, isolation, and characterization of phosphonate-functionalized trialkoxysilane monomers are described. Use of the classic Michaelis-Arbusov rearrangement to produce 3-diethylphosphonatepropyltrimethoxysilane, (CH3O)3Si(CH2)3P=O(OCH2CH3)2, in high yield permits the incorporation of the new monomer into a variety of new copolymers. Details of the synthesis and the reaction of alkoxysilane-phoshonate monomers with dimethyldimethoxysilane and methyltrimethoxysilane are characterized by TGA and NMR analysis.