M. Purushothaman1, P. Santhana Gopala Krishnan1,2,*, S. K. Nayak1,2
Journal of Renewable Materials, Vol.3, No.4, pp. 292-301, 2015, DOI:10.7569/JRM.2015.634114
Abstract Four copolymers of poly(ethyl lactate acrylate-co-acrylic acid) were prepared by the solution polymerization
technique by varying the comonomer content from 0.2 to 0.8 mole percent. The copolymers were characterized
by FT-IR, 1H-NMR and proton decoupled 13C-NMR spectroscopic techniques. The reactivity ratio of ethyl
lactate acrylate (ELA) and acrylic acid (AA) was calculated using the Fineman-Ross method and the values
were found to be 0.101 and 0.186, respectively, indicating the formation of an alternating copolymer. From the
wide-angle X-ray diffraction studies (WAXD), the average molecular interchain spacing () was calculated
from the 2θ value of amorphous halo at… More >
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