The plasticizing mechanism and effect of calcium chloride on starch/poly(vinyl alcohol) films

Physical and microstructural properties of biodegradable films based on pea starch and PVA

“…Some of them mainly focus on biodegradability studies (Gupta et al, 2014;Lu et al, 2009 andSiddaramaiah et al, 2004). Other authors have analyzed the effect of the incorporation of different additives to the starch: PVA blends, such as citric acid, glutaraldehyde or urea (Gupta et al, 2014;Luo et al, 2012;Ramaraj, 2007 andShi et al, 2008), calcium chloride (Jiang et al, 2012), or nanoparticles (Yoon et al, 2012) for different purposes (compatibility enhancement or biomedical and packaging applications). Few of them studied the effect of different starch:PVA ratios on film properties Siddaramaiah et al, 2004 andSreekumar et al, 2012).…”

Properties and ageing behaviour of pea starch films as affected by blend with poly(vinyl alcohol)

“…Different studies into starch-PVA blends have been carried out, focussing on biodegradability studies (Priya, Gupta, Pathania, & Singh, 2014;Lu et al, 2009;Siddaramaiah, Raj, & Somashekar, 2004) or the effect of the incorporation of different additives to the blends, such as citric acid, glutaraldehyde or urea (Priya et al, 2014;Luo, Li, & Lin, 2012;Ramaraj, 2006;Shi et al, 2008), calcium chloride (Jiang et al, 2012), poly(methyl methacrylate-coacrylamide) nanoparticles (Yoon, Park, & Byun, 2012) for different purposes (compatibility enhancement or development of biomedical and packaging materials). Chen et al (2008) studied the effect of pea-starch nanocrystals (PSN) and native pea starch (NPS) on the structure and physicochemical properties of the PVA films.…”

Fabrication, characterization and statistical investigation of a new starch-based hydrogel nanocomposite for ammonium adsorption

“…Blending of polyvinyl alcohol (PVA) and starch is appropriate because both of them are polar constituent, which have many hydroxyl groups in their chemical structure. These polar hydroxyl groups tend to form intermolecular and intra molecular hydrogen bonds [14][15][16]. Due to limitations that pure polymeric hydrogels have, such as poor gel adhesion and strength and stability, cross-linking and modifying is necessary to enhance the structural entity of the polymer [12,17].…”