Polybutylene succinimide diethyl triamine

Titania nanoparticles were first surface-modified with polybutylene succinimide diethyl triamine (OLOA370) [87-91] and then 5wt% of the hydrophobized material was dispersed in styrene prior to a miniemulsification process. About 89% of the titania could be encapsulated in 73% of the PS, but pure polystyrene particles were still detected. Another efficient compatibilizer for titania is Solsperse 32000, a polyamine/polyester. By modifying titania with this polymer, hybrid nanoparticles with PS and PS-co-polybutylacrylate(PS-co-PBA) could be generated [92-95]. 

Detailed studies were conducted on the encapsulation of hydrophilic and hydrophobic titania nanoparticles in PS. The inorganic nanoparticles were surface-modified with polybutylene succinimide diethyl triamine (OLOA370), which has been shown to be the most efficient surfactant for enabling the dispersion of titania in styrene [106-110]. After separation of the product particles by centrifugation in a density gradient, the encapsulation efficiency was calculated. Up to 89% of... 

---