Macromolecular networks and process for making same
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsMatthew B. Dickerson, Luke A. Baldwin
Life of this patent
Estimating the term…
Abstract
The present invention relates to processes for making macromolecular networks, macromolecular networks made by such processes, and methods of using such macromolecular networks to make materials such as ceramics. The macromolecular network's formation rate is controlled by using two species of reactants each of which comprised one functionality. This results in decreased macromolecular network processing costs and superior products.
Claims16
A macromolecular network derived from the reaction of:
- (a) one or more polymers have a weight average molecular weight of from about 500 Da to a bout 200,000 Da said one or more polymers being the polymerization product of one or more monomers selected from the group consisting of:
- wherein R is selected from the group consisting of an alkyl, an aryl, a halogen or an alkoxy, and each indice n is independently an integer from 0 to 5,
- wherein each indice n is independently an integer from 0 to 5;
- wherein R is selected from the group consisting of an alkyl, an aryl, a halogen or an alkoxy, and each indice n is independently an integer from 0 to 5;
- wherein each indice n is independently an integer from 0 to 5;
- and
- (b) one or more silane crosslinking agents, said one or more silane crosslinking agents being:
- wherein each R1 and R2, is independently selected from the group consisting of a hydrogen, an alkyl or an aryl and each indice n is independently an integer of 0 or 1;
- wherein each R1, R2, and R3 is independently selected from the group consisting of a hydrogen, an alkyl or an aryl and each indice n is independently an integer of 0 or 1;
- and/or
- wherein each R1, R2, and R3 is independently selected from the group consisting of a hydrogen, an alkyl or an aryl and each indice n is independently an integer of 0 or 1.
A process of making a macromolecular network comprising reacting one or more polymers and one or more silane crosslinking agents, said one or more polymers and said one or more silane crosslinking agents being reacted in a ratio of from about 1:10 to about 10:1, said one or more polymers being the polymerization product of one or more monomers selected from the group consisting of:
- wherein R is selected from the group consisting of an alkyl, an aryl, a halogen or an alkoxy, and each indice n is independently an integer from 0 to 5
- wherein each indice n is independently an integer from 0 to 5;
- wherein R is selected from the group consisting of an alkyl, an aryl, a halogen or an alkoxy, and each indice n is independently an integer from 0 to 5;
- wherein each indice n is independently an integer from 0 to 5
- and said one or more silane crosslinking agents are selected from the following crosslinkers or mixtures thereof:
- wherein each R1 and R2, is independently selected from the group consisting of a hydrogen, an alkyl or an aryl and each indice n is independently an integer of 0 or 1;
- wherein each R1, R2, and R3 is independently selected from the group consisting of a hydrogen, an alkyl or an aryl and each indice n is independently an integer of 0 or 1;
- wherein each R1, R2, and R3 is independently selected from the group consisting of a hydrogen, an alkyl or an aryl and each indice n is independently an integer of 0 or 1.
Dependencies are inferred from the claim text.