Ionically cross-linked siloxane polymers

Details Ionically cross-linked siloxane polymers Ionically cross-linked siloxane polymers

1984-01-04

1985-06-25

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

525474, 556425, C08G 7704

Patent

active

045255679

ABSTRACT:
Siloxane polymers containing zwitterions on tertiary silicone atoms and their aminoalkyl siloxane polymer intermediates are provided. Methods of their production are also provided. The aminoalkyl siloxane polymer intermediates and the zwitterionic siloxane polymers are obtained by co-polymerizing trifunctional aminoalkyl silanes or zwitterionic silanes, respectively, with hydroxy-terminated siloxane oligomers in the presence of an acid catalyst. The aminoalkyl siloxane polymer intermediates are converted to zwitterionic siloxane polymer by reaction with an organosultone or an organolactone. Trifunctional aminoalkyl silanes are readily available and utilizing these silanes provides an economical route to obtaining zwitterionic siloxane polymers.

REFERENCES:
Litt & Matsuda, J. Polymer Science, vol. 19, p. 1221 (1975).
Graiver et al., J. Polymer Science, Polymer Chem. Ed., vol. 17, pp. 3559-3636 (1979).

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