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Polymerization and Chiroptical Behavior of Polymethacrylamides Bearing a Bulky Oxazoline Pendant

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Abstract:

The radical polymerization of optically active methacrylamide derivatives, N-[o-(4-phenyl-4,5-dihydro-1,3-oxazol-2-yl) phenymethacrylamide ((R)-PhOPMAM) and N-[o-(4-isopropyl-4,5-dihydro-1,3-oxazol-2-yl) phenymethacrylamide ((S)-PriOPMAM), were carried out under various conditions. The effect of the Lewis acid, that is, rare earth metal trifluoromethanesulfonates on the free-radical polymerization were examined under different solvents. The Lewis acids are effective in enhancing the isotacticity in the polymerization of (S)-PriOPMAM. The same phenomenon were not happened in the polymerization of (R)-PhOPMAM. The polymerization characteristics and the chiroptical behavior of the resultant polymers have been examined by using circular dichroism (CD), UVVis, and NMR spectroscopies.

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Periodical:

Advanced Materials Research (Volumes 887-888)

Pages:

688-692

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.887-888.688

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Online since:

February 2014

Authors:

Zheng Fu, Hong Wei, Chao Yuan, Zhong Wen Li*

Keywords:

Isotactic, Methacrylamide, Optical Activity, Oxazoline, Radical Polymerization

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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