FTIR studies on amino groups in purified Hevea rubber
1992
Eng, A. H. | Tanaka, Y. | Gan, S. N.
FTIR spectrum of natural rubber shows characteristic bands of attached nitrogeneous compounds at 3280 cm1 and 1540 cm-1. These bands diminish if the fresh field latex is treated with enzyme followed by washing in the presence of surfactant; a band at 3316 cm-1 is noticeable after the treatment. The band at 3320 cm-1 that remains after the treatments suggests the presence of residual amino acids bonded to the rubber molecule.
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