Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From halogenated hydrocarbon reactant
Patent
1990-06-25
1992-12-08
Kight, II, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From halogenated hydrocarbon reactant
C08G 6100
Patent
active
051699290
ABSTRACT:
Poly(phenylene) that is substantially free of insoluble material is prepared by the polymerization of a lithioarylhalide compound in the presence of a polar aprotic compound such as hexamethylphosphoramide, N,N,N',N'-tetramethylethylenediamine or hexamethylphosphorous triamide. The preferred reaction involves the polymerization of 1-bromo-4-lithiobenzene in the presence of hexamethylphosphoramide. The 1-bromo-4-lithiobenzene may be synthesized by reacting 1,4-dibromobenzene with t-butyllithium. These same types of reactions can also be used to synthesis other benzenoid polymers.
REFERENCES:
patent: 4576688 (1966-03-01), David
Kovacic, et al. Chem. Rev. (1987) 87, pp. 357-379.
Elsenbaumer, et al. Handbook of Conducting Polymers (1986), T. A. Skotheime ed. pp. 213-263.
Perlstein, Angew. Chem. Int. Ed. Engl. (1977) 16, pp. 519-534.
Kovacic, et al. J. Polymer Science (1966) Part A-1 4. pp. 5-28.
Kovacic, et al. J. Polymer Science (1966) Part A-1 pp. 1445-1462.
Encyclopedia of Polymer Science & Technology (1969), vol. 11 pp. 318-363, 380-389.
Edwards, et al. J. Polymer Science (1955) XVI. pp. 589-598.
Goldfinger J. Polymer Science (1949) IV. pp. 93-96.
Noren, et al. Macromolecular Reviews (1971) 5. pp. 386-431.
Yamamoto, et al. Bulletin Che. Soc. of Japan (1978) 51. (7) pp. 2091-2097.
Shacklette, et al. J. Chem. Soc., Chem. Commun. (1982) pp. 361-362.
Ivory, et al. J. Chem. Phys. (1979) 71. (3) pp. 1506-1507.
Shacklette, et al. J. Chem. Phys. (1980) 73. (8) pp. 4098-4102.
Kovacic, et al. J. Org. Chem. (1963) 28. pp. 968-972, 1864-1867.
Kovacic, et al. J. Org. Chem. (1964) 29. pp. 100-104, 2416-2420.
Kovacic et al. J. Org. Chem. (1966) 31. pp. 2467-2470.
Stephens Eric B.
Tour James M.
Kight, II John
Mosley Terressa M.
University of South Carolina
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