abstract |
The invention discloses a hydrocarbyl carboxybetaine represented by formula (1): Where n2> 0, A represents C1-C20 alkyl or single bond; R 1 , R 2 , R 3 , and R 4 are each independently selected from hydrogen atom, deuterium atom, C1-C20 alkyl group, C2-C20 Alkenyl and C2-C20 alkynyl; X is selected from SH, SOCH 3 , SCH 3 , NH 2 , SiCl 3 , Si (OCH 3 ) 3 , Si (OCH 2 CH 3 ) 3 , |