Abstract:
:Highly crystalline amylose-polytetrahydrofuran (PTHF) complexes can be obtained by employing organic solvents as washing agents after complex formation. The X-ray diffraction (XRD) of the washed complexes appear sharp at 12.9°-13.2° and 19.6°-20.1°, clear signs of the presence of V6I -amylose. Other diffraction peaks correlate with V6II -amylose, which indicates that the complexed amylose helices are in the form of an intermediate or a mixture of V6I - and V6II -amylose. SEM imaging reveals that the amylose-PTHF complexes crystallize in the form of lamellae, which aggregate in a round shape on top of one another with a diameter around 4-8 μm. Some lamellas aggregate as flower-like or flat-surface spherulitic crystals. There is a visible matrix in between the aggregated lamellas which shows that a part of the amylose-PTHF complexes is amorphous.
journal_name
Macromol Bioscijournal_title
Macromolecular bioscienceauthors
Rachmawati R,Woortman AJ,Loos Kdoi
10.1002/mabi.201300174subject
Has Abstractpub_date
2014-01-01 00:00:00pages
56-68issue
1eissn
1616-5187issn
1616-5195journal_volume
14pub_type
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