Preprint Article Version 1 This version is not peer-reviewed

Preparation and Characterization of Hydrophobic Groups Grafted Starches by In-Situ Solid Phase Polymerization

Version 1 : Received: 19 November 2018 / Approved: 21 November 2018 / Online: 21 November 2018 (05:04:32 CET)

A peer-reviewed article of this Preprint also exists.

Zuo, Y.; He, X.; Li, P.; Li, W.; Wu, Y. Preparation and Characterization of Hydrophobically Grafted Starches by In Situ Solid Phase Polymerization. Polymers 2019, 11, 72. Zuo, Y.; He, X.; Li, P.; Li, W.; Wu, Y. Preparation and Characterization of Hydrophobically Grafted Starches by In Situ Solid Phase Polymerization. Polymers 2019, 11, 72.

Journal reference: Polymers 2019, 11, 72
DOI: 10.3390/polym11010072

Abstract

Three kinds of hydrophobic groups grafted starches of maleic anhydride grafted starch (MAH-g-starch), lactic acid grafted starch (LA-g-starch), and methyl acrylate grafted starch (MA-g-starch) were prepared by in-situ solid phase polymerization. The results of Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) were confirmed successful grafting. The grafting ratios of MAH-g-starch, LA-g-starch and MA-g-starch were 6.50%, 12.45%, and 0.57%, respectively. Influenced by the grafting ratio, LA-g-starch had the best hydrophobic properties and the largest molecular weight, and those for MA-g-starch was the worst. The surfaces of grafted starches were covered with graft polymer, with obvious surface roughness and bond degree of MAH-g-starch and LA-g-starch. The crystalline structure of grafted starches showed some damage, with LA-g-starch exhibiting the greatest decrease in crystallinity, and less of a change for MA-g-starch. Overall, the grafting reaction improved thermoplasticity, with LA-g-starch the most improved, followed by MAH-g-starch, and then MA-g-starch.

Subject Areas

corn starch; maleic anhydride; lactic acid; methyl acrylate; hydrophobically modified; in-situ solid phase polymerization

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.