ISSN:
0022-3832
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Organotin monomers and polymers are becoming of increasing importance. Of especial theoretical and practical interest are polymers of organotin materials. In the present report results are described of studies carried out in the Laboratory of Vinyl Compounds of the Institute of Organic Chemistry of the Academy of Sciences, USSR and in the Plastics Institute of the State Committee on Chemistry of the Council of Ministers, USSR. The syntheses of a number of organotin polymers are reported, in particular, of the organotin polymethyl methacrylates from trialkyl (or aryl) stannyl methacrylates R3Sn—OCO(CH3)=CH2 and dialkyl (or aryl) stannylene dimethacrylates R2Sn[OCOC(CH3)=CH2]2 and copolymers based on these. The high molecular compounds obtained by polymerization of the organotin esters are a new class of vinyl polymers with the structure: Organotin esters copolymerize with various unsaturated monomers such as methyl methacrylate, styrene, acrylonitrile, cyclopentadiene, etc. The copolymers are mechanically strong, transparent materials. They represent considerable barriers to the passage of x-rays. The organotin esters R3SnOCOC(CH3)=CH2 and R2Sn[OCOC(CH3)=CH2]2 containing the alkyl radicals amyl, hexyl and higher groups polymerize at room temperature in the absence of catalysts to form soft and elastic polymeric materials. In the report a number of properties of another class of organotin polymers, namely, dialkyl (or aryl) stannones (R2SnO)n are discussed. It is suggested that they are high molecular compounds. Their x-ray diagrams and the results of other physicochemical analyses are examined. A study of their Debye x-ray diagrams showed that they have a regularly oriented structure. They are highly reactive and are sources for the preparation of new organotin compounds. Some of their physicochemical properties are described.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1961.1205215729
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