@Article{JRM.2014.634110,
AUTHOR = {Kristine Koch, Daniel Johansson, Kalle Johansson, Karin Svegmark},
TITLE = {Material Properties and Molecular Aspects of Highly  Acetylated Starch-Based Films},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {2},
YEAR = {2014},
NUMBER = {2},
PAGES = {134--144},
URL = {http://www.techscience.com/jrm/v2n2/49645},
ISSN = {2164-6341},
ABSTRACT = {Properties of starch triacetate fi lms from different botanical origins were evaluated. Tensile and barrier 
properties, glass transition temperatures and moisture uptake were measured, and the molecular structure 
was characterised. High-amylose starches were good fi lm formers, normal potato starch formed continuous 
but brittle fi lms and potato amylopectin formed very brittle fi lms even after plasticisation. Barley amylopectin 
did not form continuous fi lms. Different plasticisers were studied and diacetin was shown to perform better 
than the standard plasticiser triacetin. All fi lms were water resistant, and the best fi lms gave water vapour 
barriers in the range of fi lms of polylactic acid, cellulose acetates and gluten. The inherent oxygen barrier of 
native starches was lost when the starches were highly acetylated. Starch triacetates are commonly dissolved 
in organic solvents such as chloroform. When testing different approaches to dissolve the starch triacetates it 
was found that acetic acid as well as acetylacetone were good solvents without imposing negative effects on 
material properties.},
DOI = {10.7569/JRM.2014.634110}
}