HYDROXY-TERMINATED COPOLYMERS OF BUTADIENE AND FERROCENE DERIVATIVES

• US 3,718,633 A
• Filed: 11/25/1969
• Issued: 02/27/1973
• Est. Priority Date: 11/25/1969
• Status: Expired due to Term

• Current Assignee: Mart G. Baldwin, Samuel F. Reed Jr
• Original Assignee: Mart G. Baldwin, Samuel F. Reed Jr
• Inventors: Baldwin, Mart G., Reed, Samuel F. Jr.
• Primary Examiner(s): Sebastian, Leland A.
• Application Number:
  US04/886,601
• Time in Patent Office: 1,190 Days
• Field of Search: 149/19,109 260/82.1,83.1
• US Class Current: 526/204
• CPC Class Codes: C06B 23/007 Ballistic modifiers, burning rate catalysts, burning rate depressing agents, e.g. for gas generating
• CPC Class Codes: C06B 45/10 the organic component containing a resin
• CPC Class Codes: C08F 236/04 conjugated
• CPC Class Codes: C08F 30/04 containing a metal

Abstract

The copolymers of vinyl ferrocene (VF) and butadiene are disclosed along with preparative procedures therefor. The copolymers are produced in an organic solvent when polymerization is initiated by an azo type initiator selected from the initiators consisting of azo-bis-(2-methyl-hydroxyvaleronitrile), azo-bis-(hydroxyethyl-2-methyl proprionate), and azo-bis-(2-methyl-3-hydroxy proprionitrile). The copolymers serve as a binder for solid propellant compositions and also serve to increase the burning rate of solid propellants wherein used.

Claims

2. The copolymers prepared by the method of claim 1 from said reacting butadiene and vinyl ferrocene in mole ratios from approximately 100:

1 to 1;

1, said copolymers being characterized by a molecular weight in the range from about 1,000 to about 10, 000, hydroxy-end group content of about 0.1 weight percent to about 2.5 weight percent, and an iron content of about 0.24 weight percent to about 10 weight percent.