The molecular and structural plasticization of polyvinyl fluoride

Ибрагимова, З. М.; Yul'chibayev, A.A.; Zelenev, Yu. V.; Usmanov, Kh.U.

doi:10.1016/0032-3950(73)90421-8

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…Apparently, of the methods to improve film flexibility (decrease of T g ), internal plasticization is the way used by oleic acid, whereas an increased number of side chains is the way for glycerol. Actually, the mechanism for oleic acid is called molecular plasticization and that for glycerol, structural plasticization . These two different plasticization mechanisms provide the possibility for their interactions during zein film formation.…”

Section: Resultsmentioning

confidence: 99%

“…Actually, the mechanism for oleic acid is called molecular plasticization and that for glycerol, structural plasticization. 38 These two different plasticization mechanisms provide the possibility for their interactions during zein film formation. During the zein film casting process, solubilized zein protein, glycerol, and oleic acid coexisted in the aqueous alcohol solution.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Synergistic Effect of Oleic Acid and Glycerol on Zein Film Plasticization

Chai

Zhang

2012

J. Agric. Food Chem.

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Oleic acid and glycerol are two different molecules with different plasticization mechanisms, and their effects on the mechanical properties of zein film were investigated. The mechanical parameters of tensile strength (TS) and elongation to break (E) were improved by either oleic acid or glycerol in a dose-dependent manner up to 20%. When a combination of the two plasticizers in different ratios was used to make zein films, the highest TS was observed at a ratio of 3:1 of oleic acid to glycerol, and a synergy between them was revealed through a statistical analysis. A significant decrease of glass transition temperature (Tg) and different microscopic patterns examined by scanning electronic microscopy (SEM) indicate the supramolecular structure was changed by the plasticizers. A combination of plasticizers with different plasticization mechanisms might be a better way to synergistically improve the mechanical properties of biopolymer-based films for practical applications.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Synergistic Effect of Oleic Acid and Glycerol on Zein Film Plasticization

Chai

Zhang

2012

J. Agric. Food Chem.

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“…179 The synergetic effects of using mixed glycerol (polar) and oleic acid (amphiphilic) plasticizers on sodium caseinate 179 and zein protein biopolymers 180 were also reported recently. According to Ibragimo et al, 181 the plasticization obtained by glycerol is structural (inter-packet) and that of oleic acid is molecular (intra-packet). These two different molecules with different plasticization mechanisms provide the possibility for their interaction during lm formation.…”

Section: Protein Based Plasticsmentioning

confidence: 99%

Progress in bio-based plastics and plasticizing modifications

Mekonnen

Mussone

Khalil³

et al. 2013

J. Mater. Chem. A

688

423

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Over the coming few decades bioplastic materials are expected to complement and gradually replace some of the fossil oil based materials. Multidisciplinary research efforts have generated a significant level of technical and commercial success towards these bio-based materials. However, extensive application of these bio-based plastics is still challenged by one or more of their possible inherent limitations, such as poor processability, brittleness, hydrophilicity, poor moisture and gas barrier, inferior compatibility, poor electrical, thermal and physical properties. The incorporation of additives such as plasticizers into the biopolymers is a common practice to improve these inherent limitations. Generally, plasticizers are added to both synthetic and bio-based polymeric materials to impart flexibility, improve toughness, and lower the glass transition temperature. This review introduces the most common bio-based plastics and provides an overview of recent advances in the selection and use of plasticizers, and their effect on the performance of these materials. In addition to plasticizers, we also present a perspective of other emerging techniques of improving the overall performance of bio-based plastics. Although a wide variety of bio-based plastics are under development, this review focuses on plasticizers utilized for the most extensively studied bioplastics including poly(lactic acid), polyhydroxyalkanoates, thermoplastic starch, proteinaceous plastics and cellulose acetates. The ongoing challenge and future potentials of plasticizers for bio-based plastics are also discussed.

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Dielectric support for the glass transition in poly(vinyl fluoride)

Sacher

1977

J. Polym. Sci. B Polym. Lett. Ed.

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The molecular and structural plasticization of polyvinyl fluoride

Cited by 3 publications

References 3 publications

Synergistic Effect of Oleic Acid and Glycerol on Zein Film Plasticization

Synergistic Effect of Oleic Acid and Glycerol on Zein Film Plasticization

Progress in bio-based plastics and plasticizing modifications

Dielectric support for the glass transition in poly(vinyl fluoride)

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