Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1990-02-02
1992-03-31
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528422, 525538, 525535, C08G 7902, C08G 7300
Patent
active
051010038
ABSTRACT:
The synthesis of the first examples of a new class of inorganic macromolecules, the polythiophosphazenes, is reported. When heated at 90.degree. C., the cyclothiophosphazene N.sub.3 P.sub.2 SCl.sub.5 undergoes ring-opening polymerization to yield the high polymeric polythiophosphazene [N.sub.3 P.sub.2 SCl.sub.5 ].sub.n. The latter functions as a reactive macromolecular intermediate and undergoes halogen replacement with sodium phenoxide and sodium o-phenylphenoxide to afford the polymers [N.sub.3 P.sub.2 S(OPh).sub.5 ].sub.n and [N.sub.3 P.sub.2 S(OC.sub.6 H.sub.4 Ph--o).sub.3.25 Cl.sub.1.75 ].sub.n, respectively.
REFERENCES:
Zeldin, M. et al., "Inorganic and Organometallic Polymers", ACS Symp. Ser, 1988, 360, 250-282.
Wannagat, U. et al.; Angew Chem., 1962, 74, 117.
Becke-Goering, M., et al.; Z. Anorg. Allg chem., 1963, 325, 287.
Allcock, H. R., Angew, Chem. Int. Ed. Engl. 16:147 (1977).
Allcock, H. R., Chemical & Engineering News 63:22 (Mar. 18, 1985).
Allcock, H. R., "Current Status of Polyphosphazene Chemistry" (Chapter 10 in "Inorganic and Organometallic Polymers", ACS Symp. Ser. 360 (1988).
Kanatzidis, M. G., et al., J. Am. Chem. Soc. 111:760 (1989).
Manners, I. et al., J. Am. Chem. Soc. 111:5478 (1989).
Seyferth, D. et al., Chemistry of Materials 1:45 (1989).
Allcock Harry R.
Dodge Jeffrey A.
Manners Ian
Nuyken Oskar
Renner Gerhard
Anderson Harold D.
Monahan Thomas J.
Mosley T.
The Pennsylvania Research Corporation
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