Claims
- 1. A method of polymerizing ethynyl-substituted adamantane monomers selected from the group consisting of 1,3-diethynyladamantane monomers and mixtures of 1-ethynyladamantane and 1,3-diethynyladamantane monomers which comprises heating the monomers under suitable temperature and time conditions for the purpose.
- 2. A method in accordance with claim 1 in which the ethynyl-substituted monomers are 1,3-diethynyladamantane monomers.
- 3. A method in accordance with claim 2 in which the heating of the monomers under suitable temperature and time conditions comprises heating said monomers at about 230.degree. C. for a period of from about 12 hours to about 80 hours.
- 4. A method in accordance with claim 3 in which the heating of said monomers at about 230.degree. C. is followed by additional heating thereof at from about 290.degree. to about 320.degree. C. for from about 5 to about 30 minutes.
- 5. A method in accordance with claim 4 in which the 230.degree. C. heating period is about 16 hours and the from about 290.degree. to about 320.degree. C. heating period is about 30 minutes.
- 6. A method in accordance with claim 5 in which the heating temperature of from about 290.degree. to about 320.degree. C. is about 290.degree. C.
- 7. A method in accordance with claim 2 in which the heating of the monomers under suitable temperature and time conditions comprises heating said monomers to from about 290.degree. to about 320.degree. C. and maintaining them thereat for a suitable time period.
- 8. A method in accordance with claim 3 in which the period of from about 12 hours to about 80 hours is 12.5 hours, and which includes a follow-up heat treatment at about 290.degree. C. under atmospheric pressure for curing purposes.
- 9. A method in accordance with claim 1 in which the ethynyl-substituted monomer are made up of a mixture of 1-ethynyladamantane and 1,3-diethynyladamantane monomers.
- 10. A method in accordance with claim 9 in which the weight ratio of 1-ethynladamantane monomers to 1,3-diethynyladamantane monomers in said mixture is 1:4.
- 11. A method in accordance with claim 10 in which the heating of the monomers under suitable temperature and time conditions comprises heating said monomers at about 230.degree. C. for about 24 hours and thereafter at about 290.degree. C. for about 30 minutes.
- 12. A polymerized product formed from monomers selected from the group consisting of 1,3-diethynyladamantane monomers and mixtures of 1-ethynyladamantane and 1,3-diethynyladamantane monomers.
- 13. A polymerized product in accordance with claim 12 formed from 1,3-diethynyladamantane monomers.
- 14. A polymerized product in accordance with claim 12 formed from a mixture of 1-ethynyladamantane and 1,3-diethynyladamantane monomers.
Government Interests
The Government has rights in this invention pursuant to contract F33615-85-C-5139 awarded by the Department of the Air Force.
US Referenced Citations (6)
Foreign Referenced Citations (1)
Number |
Date |
Country |
507592 |
May 1978 |
SUX |