lack of selectivity, and a weaker ionic bond was downer for the lower TS. On the other hand, the mass of the mass of the crosslinking ions was transformed into into molar mass, and the molar mass changed as follows: nCa2 plus nAl3 plus nZn2 plus nMn2 . The higher molar mass of Ca2 plus was more more for the for-get-larger TS. As Fig. 1 show, the E at break of Ca2-crosslinkedfilms plus by-anally 50% of the data to that of the control. Zinc-, manganese-, and and aluminum-crosslink films exhibited lower e at control. Generally, with the crosslinking of alginate films, the E atbreak of the films of the symfors because of the reduced mobility of the chain segments (Benavides et al., 2012; David-Pinhas and Bianco Peledovich, 2010; Rhim, 2004). In our case, crosslinking with Ca2 plus the plus ly added e at break of films. Russo, Malinconico, and Santagata (2007) studied the effects of cross withlinking calcium ions on the physical properties of alginate films. They find it the mobility of the sincans an increased d crosslinking with calcium ions, attributed d dd a so-to-an in-free book cause by cross cross linking in swollen state. They thought it the crosslink points sia hindrance for the packing of the chain, but the terrist segments to two cross cross linking points live sly anthid mobility because of the anincrease in free volume. Zn2 plus mnwollen2 plus also crosslinked in the s state, but the e at at break break the film did not add. This is the case may be attributed to the sin in the number of the case units two two two cross-linking points, because of the lack of theivity and the home Films, who's the resulted in a lys in the chain in the chain. Although the<br>Valence state of Al3 plus is higher than that of Ca2, Zn2 plus, and Mn2 plus, it is not applicable to the above the hypothesis because Al3 plus can form a non-planar structure. A to the valence of Al3 plus, it may with a three-times carboxyl site to form a more complex complex complex tight structure, who is the mobility chains and the reduced e at break of films. ...
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