caa a22 4500 467886245 CHVBK 20180406152735.0 cr unu---uuuuu 170328e20060101xx s 000 0 eng 10.1007/s10924-005-8709-8 doi (NATIONALLICENCE)springer-10.1007/s10924-005-8709-8 Mechanical Properties with the Functional Group of Additives for Starch/PVA Blend Film [Elektronische Daten] [Yeon-Hum Yun, Young-Ho Na, Soon-Do Yoon] This paper deals with the mechanical properties and degree of swelling (DS) of starch/PVA blend film with the functional groups i.e., hydroxyl and carboxyl group, of additives. Starch/PVA blend films were prepared by using the mixing process. Glycerol (GL) with 3 hydroxyl group, sorbitol (SO) with 6 hydroxyl group, succinic acid (SA) with 2 carboxyl group, malic acid (MA) with 1 hydroxyl and 2 carboxyl group, tartaric acid (TA) with 2 hydroxyl and 2 carboxyl group and citric acid (CA) with 1 hydroxyl and 3 carboxyl group were used as additives. The results of measured tensile strength (TS) and elongation (%E) verified that both hydroxyl and carboxyl group as a functional groups increased the flexibility and strength of the film. Values of DS for GL-added and SA-added films were low. However, DS values of the films added MA, TA or CA with both hydroxyl and carboxyl group were comparatively high. When the film was dried at low temperature, the properties of the films were evidently improved. The reason is probably because the hydrogen bonding was activated at low temperature. Springer Science+Business Media, Inc., 2006 Starch/PVA blend film nationallicence functional group nationallicence additives nationallicence mechanical properties nationallicence degree of swelling nationallicence Yun Yeon-Hum Department of Mineral & Energy Resources Engineering, Chonnam National University, 300 Yongbong-dong, 500-757, Buk-gu, Kwangju, South Korea aut Na Young-Ho Department of Applied Chemical Engineering, Chonnam National University, 300 Yongbong-dong, 500-757, Buk-gu, Kwangju, South Korea aut Yoon Soon-Do Department of Applied Chemical Engineering, Chonnam National University, 300 Yongbong-dong, 500-757, Buk-gu, Kwangju, South Korea aut Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers 14/1(2006-01-01), 71-78 1566-2543 14:1<71 2006 14 10924 https://doi.org/10.1007/s10924-005-8709-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-005-8709-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yun Yeon-Hum Department of Mineral & Energy Resources Engineering, Chonnam National University, 300 Yongbong-dong, 500-757, Buk-gu, Kwangju, South Korea aut NATIONALLICENCE 700 1- Na Young-Ho Department of Applied Chemical Engineering, Chonnam National University, 300 Yongbong-dong, 500-757, Buk-gu, Kwangju, South Korea aut NATIONALLICENCE 700 1- Yoon Soon-Do Department of Applied Chemical Engineering, Chonnam National University, 300 Yongbong-dong, 500-757, Buk-gu, Kwangju, South Korea aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers 14/1(2006-01-01), 71-78 1566-2543 14:1<71 2006 14 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer