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.