A temperature-responsive carbon black nanoparticle prepared by surface-induced reversible addition-fragmentation chain transfer polymerization

作者：Yang Qiang; Wang Li^*; Xiang Weidong; Zhou Junfeng; Tan Qiao hua

来源：Polymer, 2007, 48(12): 3444-3451.

DOI：10.1016/j.polymer.2007.02.064

• carbon black
• SI-RAFT polymerization
• temperature-responsive

A reversible addition-fragmentation chain transfer (RAFT) agent, 2-{[(dodecylsulfanyl)carbonothioyl]sulfanyl}propanoic acid (DSCTSP), was immobilized on the hydroxyl-functionalized carbon black (CB) surface via a direct condensation reaction, producing CB-DSCTSP. Then, RAFT polymerizations were carried out on carbon black surface using the CB-DSCTSP as a chain transfer agent. Poly(N-isopropylacrylamide) (PNIPAAm) chains were grown from the carbon black surface by a surface-induced reversible addition-fragmentation chain transfer (SI-RAFT) polymerization. FT-IR,H-1 NMR, TGA, TEM, and dynamic light scattering were used to characterize the carbon black grafted with poly(N-isopropylacrylamide) (CB-g-PNIPAAm). Dispersion experiment showed that CB-g-PNIPAAm had a good solubility in water. H-1 NMR, AFM and dynamic light scattering measurements showed that CB-g-PNIPAAm behaved a reversible temperature-responsive property in water.

• 出版日期2007-6-4
• 单位浙江大学; 温州大学