Abstract
Nanohybrids of stimuli-responsive polymers, including poly(N-isopropylacrylamide)、poly(2-(dimethylamino)ethyl methacrylate) and C60 have been prepared through sequential atom transfer radical polymerization. The samples have been characterized by gel permeation chromatography、FTIR、UV-vis and ¹H NMR. The self-assembly behaviors of the samples have been investigated by high resolution transmission electron microscopy. PNIPAM171-C60 and C60-PNIPAM21-C60 self-assemble into nano-toroids in chloroform at 25°C. PNIPAM171-C60 self-assembles into thick nano-toroids and C60-PNIPAM21-C60 self-assembles into nanoparticles in chloroform at elevated temperature due to the decrease in the solubility of the hybrids in chloroform. Both PNIPAM171-C60 and C60-PNIPAM21-C60 self-assemble into nanoparticles in water. PDMAEMA99-C60 self-assembles into network structures and C60-PDMAEMA67-C60 self-assembles into nanoparticles in chloroform at 25°C. PDMAEMA99-C60 and C60-PDMAEMA67-C60 self-assemble into nanoparticles in water. The size of nanoparticles is affected by temperature.