Diacetylene segmented copolymers
AssigneeGTE Laboratories Incorporated
InventorMichael F. Rubner
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Abstract
Diacetylene segmented copolymers having first and second segments are disclosed. The preferred segmented copolymers of this invention are prepared from three basic monomers: a diisocyanate, a flexible elastomeric prepolymer and a chain extender containing a diacetylene unit. The resultant segmented copolymers exhibit the mechanical properties of elastomers and also many of the novel characteristics of the polydiacetylenes. Also for the first time, a polydiacetylene has been produced which exhibits mechanochromism.
Claims26
A segmented copolymer comprising first and second segments, said first segment containing at least one diacetylene unit and said second segment being a low molecular weight polymer containing no diacetylene units.
A mechanochromic segmented copolymer containing cross-polymerized diacetylene units.
A thermochromic segmented copolymer containing cross-polymerized diacetylene units.
An improved method of detecting temperature utilizing a fiber optic system, wherein the improvement comprises:
- using a segmented copolymer containing cross-polymerized diacetylene units in the temperature sensor.
Dependencies are inferred from the claim text.