Study of adsorption behaviors on a SiO2 surface using alkyl cationic modified starches

- Cationic alkyl starches were synthesized to observe the adsorption behavior by QCM-D.
- Adsorbed amount of cationic starches increased compared with cationic surfactants.
- Tendency for increased rigidity after desorption was observed in all cationic starches.
- Cationic alkyl starches showed more adsorbed amount and rigidity than cationic starches.