skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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 TIC; NTS-82-003996; ERA-07-030209; EDB-82-071971
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 = {1981},
month = {2}
}