Chemical Modification of Potato Starch by Graft Copolymerization with Citronellyl Methacrylate

Marta Worzakowska

doi:10.1007/s10924-017-1062-x

Marta Worzakowska

Open Access

https://doi.org/10.1007/s10924-017-1062-x

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Abstract

Chemical modification of potato starch with citronellyl methacrylate monomer, characterization of obtained materials and its physicochemical properties have been presented. The chemical modification of potato starch under the grafting process with citronellyl methacrylate led to the preparation of novel, amphiphilic materials where from 0.3 to ca. 1.6 hydroxyl groups per glycoside unit were replaced by poly(citronellyl methacrylate) chains. The grafting of poly(citronellyl methacrylate) chains onto starch backbone caused considerably changes in the morphology, polarity, solubility, chemical stability, moisture absorbance, gelatinization properties, thermal stability and decomposition mechanism of the prepared copolymers as compared to native potato starch. The influence of the grafting percent on the above mentioned properties as well as on the pyrolysis mechanism was discussed in detail.

Highlights

Citronellol is a monoterpenoid, primary fragrant alcohol with sweet, agreeable, comparable with rose odour
This paper presents the utilization of citronellyl methacrylate prepared under the esterification process of naturally occurring terpene alcohol and methacryoyl chloride in the presence of triethylamine as a catalyst in the synthesis of copolymers with potato starch and the evaluation of the properties of the obtained materials
The copolymers were prepared under the free-radical graft copolymerization process of gelatinized potato starch with citronellyl methacrylate ester according to the procedure presented elsewhere [21–23]

Summary

Introduction

Citronellol is a monoterpenoid, primary fragrant alcohol with sweet, agreeable, comparable with rose odour. This paper presents the utilization of citronellyl methacrylate prepared under the esterification process of naturally occurring terpene alcohol and methacryoyl chloride in the presence of triethylamine as a catalyst in the synthesis of copolymers with potato starch and the evaluation of the properties of the obtained materials.

Results

Conclusion