Method for making block siloxane copolymers
Abstract
A method for synthesizing block polysiloxane copolymers is disclosed. Diorganoscyclosiloxanes and an end-blocking compound are interacted in the presence of a ring opening polymerization catalyst, producing a blocked prepolymer. The prepolymer is then interacted with a silanediol, resulting in condensation polymerization of the prepolymers. A second end-blocking compound is subsequently introduced to end-cap the polymers and copolymers formed from the condensation polymerization.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5742673
- Application Number:
- ON: DE82004528
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; SILOXANES; SYNTHESIS; COPOLYMERS; POLYMERIZATION; CHEMICAL REACTIONS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; 360400* - Polymers & Plastics- (-1987)
Citation Formats
Butler, N L, Jessop, E S, and Kolb, J R. Method for making block siloxane copolymers. United States: N. p., 1981.
Web.
Butler, N L, Jessop, E S, & Kolb, J R. Method for making block siloxane copolymers. United States.
Butler, N L, Jessop, E S, and Kolb, J R. Wed .
"Method for making block siloxane copolymers". United States.
@article{osti_5742673,
title = {Method for making block siloxane copolymers},
author = {Butler, N L and Jessop, E S and Kolb, J R},
abstractNote = {A method for synthesizing block polysiloxane copolymers is disclosed. Diorganoscyclosiloxanes and an end-blocking compound are interacted in the presence of a ring opening polymerization catalyst, producing a blocked prepolymer. The prepolymer is then interacted with a silanediol, resulting in condensation polymerization of the prepolymers. A second end-blocking compound is subsequently introduced to end-cap the polymers and copolymers formed from the condensation polymerization.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Feb 25 00:00:00 EST 1981},
month = {Wed Feb 25 00:00:00 EST 1981}
}
Search for the full text at the U.S. Patent and Trademark Office
Note: You will be redirected to the USPTO site, which may require a pop-up blocker to be deactivated to view the patent. If so, you will need to manually turn off your browser's pop-up blocker, typically found within the browser settings. (See DOE Patents FAQs for more information.)
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.