Organic Compounds, C7 to C8

Zhang, Z.-Y.; Frenkel, Michael; Marsh, Kenneth N.; Wilhoit, R. C.

doi:10.1007/10469434_6

Cited by 1 publication

(1 citation statement)

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“…The HEP remained liquid in the final film, as observed by all characterizations, except after the supercooling took place in the DSC measurements. The melting point was essentially at room temperature (22 °C, 22 Figure S6). It is notable that the uneven carbon number (here seven carbons, HEP) yielded the least stable crystals (lowest melting point).…”

Section: Resultsmentioning

confidence: 99%

Starch/Alkane Diol Materials: Unexpected Ultraporous Surfaces, Near-Isoporous Cores, and Films Moving on Water

et al. 2020

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The aim of this study was to find alternative starch plasticizers to glycerol that yielded a less tacky material in high-moisture conditions without leading to starch crystallization. A range of glycerol films containing different potential plasticizers (linear alkane diols) were therefore produced, and it was shown that 1,3-propanediol, in combination with glycerol, was a possible solution to the problem. Several additional interesting features of the starch films were however also revealed. The larger diols, instead of showing plasticizing features, yielded a variety of unexpected structures and film properties. Films with 1,6-hexanediol and 1,7-heptanediol showed an ultraporous film surface and near-isoporous core. The most striking feature was that starch films with these two diols moved/rotated over the surface when placed on water, with no other stimulus than the interaction with water. Films with 1,8-octanediol and 1,10-decanediol did not show these features, but there was clear evidence of a structure with phase-separated crystallized diol in a starch matrix, as observed in high-resolution scanning electron microscopy (SEM) images.

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Section: Resultsmentioning

confidence: 99%