Preparation and evaluation of (resorcinol – aldehyde) based polymeric dispersants for inkjet printing ink

Ahmed, Ahmed S.; Kandile, Nadia G.; Negm, Nabel A.

doi:10.21608/jsrs.2018.25531

Preparation and evaluation of (resorcinol – aldehyde) based polymeric dispersants for inkjet printing ink

Document Type : Original Article

Authors

¹ R&D Department, Degla chemicals, Cairo, Egypt

² Chemistry Department, Faculty of Women, Ain-Shams University, Cairo, Egypt

³ Petrochemical Department, Egyptian petroleum research institute, Cairo, Egypt

10.21608/jsrs.2018.25531

Abstract

In this study, modification of an amino polyether with resorcinol-aldehyde condensate was performed using four different aldehydes [formaldehyde, glutaraldehyde, butyraldehyde and 4-(N,N-dimethylamino)benzaldehyde] to give dispersants (1 – 5) to be used as dispersing agents for solvent based inkjet inks. The prepared dispersing agents were characterized using FT-IR and GPC. The optical properties and stability efficiency of the ink formulated with the prepared dispersing agents were investigated. The dispersants (1-5) were evaluated for their efficiency in comparison to commercial dispersing agents used in the market. Formulations of dispersants 4 and 5 showed excellent results in comparison to the commercial dispersing agents and have a good potential as effective dispersing agents for solvent based inkjet inks.

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