Cyclic silethynyl polymers and a method for making them

Details Cyclic silethynyl polymers and a method for making them Cyclic silethynyl polymers and a method for making them

1989-01-09

1989-09-12

Michl, Paul R.

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

Synthetic resins

From silicon reactant having at least one...

556406, 556478, 526279, C08G 7720

Patent

active

048661538

ABSTRACT:
Cyclic silethynyl polymers, having at least 4 silicon atoms per polymer, have the average formula ##STR1## Preferably x has a value of 5 or 6, and each R is independently methyl or phenyl. They are prepared by reacting a lithium salt of one or more diehtynylsilanes with one or more dihalosilanes. These polymers are useful for example in semi- or photoconductive applications.

REFERENCES:
patent: 3699140 (1972-10-01), Chandra et al.

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