Application of advanced polymeric materials for controlled release pesticides

14th International Symposium on Advanced Materials

Rahim, M.^1 ; Hakim, M.R.^1 ; Haris, H.M.^1

School of Chemical Sciences, Universiti Sains Malaysia, Pulau Pinang

11800, Malaysia^1

关键词: Absorbance spectrum;    Aqueous media;    Controlled release;    Prolonged release;    Standardized curve;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/146/1/012020/pdf
DOI  :  10.1088/1757-899X/146/1/012020

来源: IOP

【 摘 要 】

The objective of this work was to study the capability of advanced polymeric material constituted by chitosan and natural rubber matrices for controlled release of pesticides (1-hydroxynaphthalene and 2-hydroxynaphthalene) in aqueous solution. The released amount of pesticides was measured spectrophotometrically from the absorbance spectra applying a standardized curve. The release of the pesticides was studied into refreshing and non-refreshing neutral aqueous media. Interestingly, formulation successfully indicated a consistent, controlled and prolonged release of pesticides over a period of 35 days.