Water vapor sorption and glass transition temperatures of phase-separated amorphous blends of hydrophobically-modified starch and sucrose

Job Ubbink*, Thomas Zwick, David Hughes, Gabriela Badolato Bönisch

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)

Abstract

This article contains water vapor sorption data obtained on amorphous blends of octenyl succinic acid-modified (denoted as hydrophobically modified starch; HMS) and sucrose (S) in the anhydrous weight HMS/S ratios between 100/0 and 27/75. The water vapor sorption data was obtained gravimetrically. The amorphous state of the blends was confirmed by X-ray diffraction. The glass transition temperatures of the phase-separated blends are listed; the blends show phase separation into a sucrose-rich phase and a HMS-rich phase, the composition of which varies with the blend ratios. The sucrose-rich phase is characterized by a glass transition temperature Tg,lower that is 40 to 90 K lower than the glass transition temperature Tg,upper of the HMS-rich phase.

Original languageEnglish
Pages (from-to)1884-1889
Number of pages6
JournalData in Brief
Volume20
DOIs
Publication statusPublished - 1 Oct 2018

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