Synthesis and Characterization of Amphiphilic Block Copolymer by Block Copolymerization of Butadiene and Acrylamide using Macroazoinitiator |
| |
| Authors: | Anjali Bajpai Neeraj Dixit |
| |
| Institution: | 1. Department of Chemistry , Government Model Science College (Autonomous), A Center for Excellence in Science Education , Jabalpur, India abs_112@rediffmail.com;3. Department of Chemistry , Government Model Science College (Autonomous), A Center for Excellence in Science Education , Jabalpur, India |
| |
| Abstract: | Abstract Macroazoinitiator (MAI) was prepared from hydroxyl‐terminated polybutadiene (HTPB) and 4,4′‐azobis‐4‐cyanopentanoic acid by direct polycondensation in the presence of 1‐methyl‐2‐chloropyridinium iodide at room temperature. This MAI used for block copolymerization of AAm at 60°C gave the best results in chloroform but the formation of a crosslinked product could not be ruled out in dioxane. It was inferred that for production of a linear block copolymer, homogeneous reaction mixture was required. The resulting products were characterized by spectral studies IR and NMR, viscosity measurements. Distinct phase segregation of hydrophobic and hydrophilic blocks was evident through DSC analysis. |
| |
| Keywords: | amphiphilic block copolymer polybutadiene‐block‐polyacrylamide macroazoinitiator polycondensation |
|
|
