Thermoresponsive Behaviors of Poly(oxypropylene)-amidoamine Functionalized Carbon Nanotubes
作者： Sung-Tso Lin , Chih-Wei Chiu , Wen-Chang Chen , Jiang-Jen Lin
DOI: 10.1021/JP0737350
关键词:
摘要: Multiwalled carbon nanotube (MWNT) was organically grafted with poly(oxypropylene)-amine (POP-amine) of 2000 g mol-1 molecular weight and became highly dispersible in water organic media such as toluene. The presence the POP pendants may render to MWNT an inverse temperature transition (ITT) for dispersion, showing a higher dispersing ability at lower below 21−27 °C, which is detectable by UV−vis transmittance naked eye. temperature-responsive dispersion behavior further demonstrated toluene/water biphasic system, taking advantage its relative both media. By varying around ITT, dark-colored (CNT) dispersed into either or toluene phase, reversible manner multiple cycles. unique thermoresponsive property attributed switching noncovalent bonding forces tethered segments between hydrogen hydrophobic interaction t...
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