Preparation of Polymer Microtubes via RAFT Polymerization of N,N'-Methylene Bisacrylamide Gel Fibers

doi:10.7503/cjcu20121163

Abstract

Abstract:

Polymer microtubes were fabricated by copolymerizing N,N'-methylene bisacrylamide(MBA) organogel fibers and triethylene glycol diacrylate(TEGDA) via reversible addition-fragmentation chain transfer(RAFT) polymerization. The tubular structure and compositions of the polymer microtubes were demonstrated by scanning electron microscopy(SEM), transmission electron microscopy(TEM), Fourier transform infrared(FTIR) spectrometer and elemental analysis. In presence of TEGDA, the yield of the polymer microtubes was enhanced significantly and the resulting tubes had self-supporting ability. The in-situ observation of the polymer microtubes by environmental scanning electron microscopy(ESEM) indicated the swelling property of the tubes in solvent. The mechanical properties of the gels were measured by a rheometer. The results show that the storage modulus(G') and loss modulus(G") of the polymer gel are much higher than those of the MBA organogel.

Key words: Triethylene glycol diacrylate, Reversible addition-fragmentation chain transfer polymerization, Gel, Fiber, Polymer microtube

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TrendMD:

LI Qi, TANG Li-Ming, LIANG Yong. Preparation of Polymer Microtubes via RAFT Polymerization of N,N'-Methylene Bisacrylamide Gel Fibers[J]. Chem. J. Chinese Universities, 2013, 34(6): 1542.

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Preparation of Polymer Microtubes via RAFT Polymerization of N,N'-Methylene Bisacrylamide Gel Fibers

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