Chain multiyne compound, preparation method and application thereof

A chain multiyne compound, characterized in that the chain multiyne compound has a structure of Formula I shown below:

• wherein X is any one of —O—, —S—, —CR4R5—, —SiR6R7— and —NR8—;
• the R4, R5, R6, R7 and R8 are any one of hydrogen, C1-C20 alkyl, C1-C20 ester group, C1-C20 acyl, C3-C20 cycloalkyl, C1-C20 alkyl halide, nitrile group, nitryl, substituted or unsubstituted aryl and
• respectively and independently;
• the R9 is any one of C1-C8 alkyl and substituted or unsubstituted phenyl;
• wherein R1 is any one of nitrile group, substituted or unsubstituted C2-C30 alkynyl, substituted or unsubstituted C4-C30 multiyne, substituted or unsubstituted C3-C30 cumulene group, without containing a structure unit of —C≡CCH(OH)C≡C—;
• R2 and R3 are any one of hydrogen, substituted or unsubstituted aryl, substituted or unsubstituted C1-C8 alkyl, substituted or unsubstituted C1-C8 alkoxy, substituted or unsubstituted C1-C8 alkylthiol, substituted or unsubstituted C3-C8 cycloalkyl and substituted or unsubstituted C2-C8 alkynyl respectively and independently, without containing a structure unit of —C≡CCH(OH)C≡C—;
• wherein m and n are respectively integers from 1-6, and m+n<8.