Preceramic short chained polymers and methods thereof
OwnerShenqiang Ren, Saurabh Khujeinventors
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Abstract
The present disclosure generally relates to preceramic precursors for ultrahigh temperature ceramics, for thermal protection systems, and passivation coating.
Claims20
A preceramic short chain polymer of Formula I:
- wherein
- A is CH2, NR2, CR2, where R is H, alkyl.
- R1 is independently hydrogen, alkyl, or ethyl;
- TM is a Group IV, V, or V transition metal;
- and
- x is 1-100.
A preceramic short chain polymer comprising a monomer of Formula I:
- wherein
- A is CH2, NR2, CR2, where R is H, alkyl.
- R1 is independently hydrogen, alkyl, or ethyl;
- TM is a Group IV, V, or V transition metal;
- and
- x is 1-100.
A preceramic composition comprising a preceramic monomer of Formula I.
A preceramic composition comprising a preceramic polymer comprising a monomer of Formula I:
- wherein
- A is CH2, NR2, CR2, where R is H, alkyl.
- R1 is independently hydrogen, alkyl, or ethyl;
- TM is a Group IV, V, or V transition metal;
- and
- x is 1-100.
A method of making a preceramic short chain polymer of Formula I, said method comprising crosslinking a monomer of Formula I′ in the presence of Group IV, V, or V transition metal and heat to obtain a monomer of Formula I;
- wherein
- A is CH2, NR2, CR2, where R is H;
- R1 is independently hydrogen, alkyl, or ethyl;
- R2 is independently hydrogen, alkyl, or ethyl;
- TM is a Group IV, V, or V transition metal;
- and
- where x is 1-100.
Dependencies are inferred from the claim text.