Patent ID: 11906493
Assignee: ROHM AND HAAS ELECTRONIC MATERIALS LLC
Field: Measurement (Instruments)
Classification: CPC G  C | IPC C  G

Claim 0:
1. A gas sensor, comprising:
a substrate;
a plurality of electrodes on the substrate; and
a polymeric sensing layer on the substrate for adsorbing a gas-phase analyte, the adsorption of which analyte is effective to change a property of the gas sensor that results in a change in an output signal from the gas sensor, wherein the polymeric sensing layer comprises a polymer chosen from substituted or unsubstituted polyarylenes comprising the reaction product of monomers comprising a first monomer comprising an aromatic acetylene group and a second monomer comprising two or more cyclopentadienone groups, or a cured product of the reaction product, wherein the first monomer is chosen from monomers of formula (1) or formula (2):, wherein: R is independently chosen from H, —C(═O)OR2, substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl; R1 is independently chosen from F, substituted or unsubstituted C1-10 alkyl, substituted or unsubstituted C6-20 aryl, C4-20 heteroaryl, —C≡C—R, —C(═O)OR2, —C(═O)NHR3, —O—C(═O)R4, —NHC(═O)R5,— S(═O)2—OR6, or S(═O)2—NHR3; R2 is independently chosen from H, substituted or unsubstituted C1-10 alkyl, C6-20 aryl, or C4-20 heteroaryl; R3 is independently chosen from H or substituted or unsubstituted C1-10 alkyl; R4 is independently chosen from H or substituted or unsubstituted C1-10 alkyl; R5 is independently chosen from H or substituted or unsubstituted C1-10 alkyl; R6 is independently chosen from H or substituted or unsubstituted C1-10 alkyl; and a in formula (1) is an integer from 0 to 2, and a in formula (2) is an integer from 0 to 3; and the second monomer is of formula (3A):, wherein each R7 is independently chosen from H, substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl; R8 is substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl; R9 is independently chosen from substituted or unsubstituted C1-6 alkyl, substituted or unsubstituted C6-20 aryl, or substituted or unsubstituted C4-20 heteroaryl; and Ar1 is an aromatic moiety.