PENENTUAN DERAJAT ASILASI (DA) DENGAN METODE BASE LINE DARI  SINTESIS N-ALDIMIN KITOSAN

Yolanda V. A Soma; Daniel Daniel; Chairul Saleh

Yolanda V. A Soma Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman
Daniel Daniel Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman
Chairul Saleh Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Mulawarman

Abstract

Determination Degree of Acylation (DA) with the baseline method from the synthesis of N-Aldimin Chitosan was obtained from the acylation reaction between chitosan and acetaldehyde. The formation of N-Aldimin Chitosan is supported by the data of FT-IR spectroscopy in the wave number 3441.01 cm-1 shows the stretching vibration of OH of chitosan and absorption peaks in the area of wave number 1627.92 cm-1 and 1566.20 cm-1 is vibration C=N which identifies the formation aldimine chitosan. Wavenumber 2924.09 cm-1 shows the C-H stretching vibration as evidenced by a wave number 1404.16 cm-1 which is C-H bending and C-O absorption at wavenumber 1087.85 cm-1. Acylation degree (DA) obtained by 81.33%.

Keyword

Degree Acylation, N-Aldimin Chitosan, FT-IR

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