Stimuli-responsive microgels formed by hyperbranched poly(ether amine) decorated with platinum nanoparticles
作者： Rui Wang , Xuesong Jiang , Bing Yu , Jie Yin
DOI: 10.1039/C1SM05938F
关键词:
摘要: We report novel multistimuli responsive microgels based on coumarin-containing hyperbranched poly(ether amine) (hPEA-EC). hPEA-EC could be dispersed directly in aqueous solution as polymer particles, whose cores were crosslinked through the photodimerization of coumarin moieties to form with size about 150 nm diameter. The obtained (hPEA-diEC) exhibited good stability and possessed sharp response temperature, pH ionic strength tunable cloud point (CP). Simultaneously, hPEA-diEC decorated platinum nanoparticles (Pt@hPEA-diEC) investigated microreactors for reduction aromatic nitro compounds. Pt@hPEA-diEC interesting catalytic activities nitrophenol, which is obviously faster at lower temperature. Compared 4-nitrophenol (Nip), more efficient activity hydrophobic 4-nitro-3-(trifluoromethyl)phenol (CF3Nip), probably ascribed encapsulation CF3Nip microgels. These characteristics give potential intelligent materials controlled compounds water.
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