Polymerization of N,N-Dimethylaminopropyl-Acrylamide Through Hydrogen Transfer Induced by the Propagation of the Polyacrolein Anion |
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| Authors: | Natsuki Yamashita Atsuhito Tadokoro Eiichiozu Toshihisa Maeshima Ion C Baianu Lun-Shin Wei |
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| Institution: | 1. Department of Food Science , University of Illinois , Urbana, Illinois, 61801;2. Department of Applied Chemistry , Faculty of Science and Engineering Kinki University , 3-4-1 Kowakae, Higashi-Osaka, 577, Japan;3. Physical Chemistry and NMR Laboratories , University of Illinois , Urbana, Illinois, 61801 |
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| Abstract: | The anionic polymerization of acrolein (AL) with N, N-dimethylamino-propylacrylamide (DMAPA) in the presence of water was investigated in tetrahydrofuran, benzene, and ethanol at 0°C in a nitrogen atmosphere. The resulting polymers were found to be essentially vinyl polymers with one DMAPA attached and an aldehyde side chain. From observations of the polymerization process by 1H NMR, we find that polymerization was initiated by the hydroxyl anion formed in the thermodynamic equilibrium between the amine of DMAPA and water. The hydrogen transfer reaction of DMAPA was caused by the propagating poly-AL anion. On the other hand, the monomer reactivity ratios and the Q2-e2values of DMAPA were determined by the free-radical copolymerization of styrene (St, M1) with DMAPA and AIBN as initiator. |
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| Keywords: | Polyaniline Enzymatic polymerization Solid-state 13C and 15N CP/MAS NMR Conducting polymer |
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