SINTESIS DAN KARAKTERISASI POLIELEKTROLIT KOMPLEKS (PEC) KITOSANPEKTIN SEBAGAI MATRIKS FILM INDIKATOR pH
Abstract
Polyelectrolyte complex (PEC) was formed by the ionic interaction between the polyanion of pectin and polycation of
chitosan. The electrostatic attraction between the amino group bonding (-NH3+) of protonated chitosan and carboxyl acid
bond (-COO-) deprotonated from pectin is the main interaction of the formation of PEC chitosan-pectin. The purpose of
this research is to synthesize and characterize PEC chitosan-pectin for application as a pH indicator. The comparison of
solution chitosan 3% to pectin 3% (b/v) are 0, 10, 30, 50, 70, 90 and 100% at pH 4. The process of synthesis PEC film
has used the ultrasonic method. The product of polyelectrolyte complex chitosan-pectin can be synthesized by indirect
methods at pH 4. The difference in the characteristics of the PEC chitosan-pectin of various polymer composition and
provenance are indicated with the analysis of functional group analysis, thermal analysis, swelling and color analysis.
chitosan. The electrostatic attraction between the amino group bonding (-NH3+) of protonated chitosan and carboxyl acid
bond (-COO-) deprotonated from pectin is the main interaction of the formation of PEC chitosan-pectin. The purpose of
this research is to synthesize and characterize PEC chitosan-pectin for application as a pH indicator. The comparison of
solution chitosan 3% to pectin 3% (b/v) are 0, 10, 30, 50, 70, 90 and 100% at pH 4. The process of synthesis PEC film
has used the ultrasonic method. The product of polyelectrolyte complex chitosan-pectin can be synthesized by indirect
methods at pH 4. The difference in the characteristics of the PEC chitosan-pectin of various polymer composition and
provenance are indicated with the analysis of functional group analysis, thermal analysis, swelling and color analysis.
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