TITLE:
Surface Photografting of Novel Sulfobetaine Copolymers on Silica
AUTHORS:
Abhishek Kumar, Nazia Tarannum, Meenakshi Singh
KEYWORDS:
Copolymer, Sulfobetaine; Zwitterionic; Grafted Copolymer; Photopolymerization; Maleimide; Michael-Type Reaction; Surface Initiated Polymerization (SIP); Density Functional Theory (DFT); Fluorescence
JOURNAL NAME:
Materials Sciences and Applications,
Vol.3 No.7,
July
19,
2012
ABSTRACT: A couple of novel sulfobetaine copolymer is developed via Michael-type addition reaction. The comonomers, diamines and maleimide react via Michael reaction through UV irradiation using AIBN as photoinitiator producing polyamine chain. Further, sulfobetaine copolymers were obtained on treatment of the polyamine with sulfopropylating agent, 1,3-propane sultone. These novel sulfobetaine polymers were grafted on silica surface to produce responsive biocompatible surface. This easy straightforward, catalyst free facile protocol for synthesis of polymer grafted surface is useful for developing biomedical devices. Additionally, both the copolymers show fluorescence characteristics.