1、Poly (vinyl acetate)
Not available and might not be a discrete structure. Polyvinyl acetate is a rubbery synthetic polymer. It is a component of glue and is used mainly as an adhesive for porous materials, particularly for wood, paper, and cloth.
2、POLY (VINYL ACETATE)
Polyvinyl acetate is derived from the polymerization of vinyl acetate; the catalysts used in polymerization may include hydrogen peroxide, peroxy sulfates, or various redox combinations.
3、Polyvinyl acetate (PVAc)
Polyvinyl acetate, a synthetic resin prepared by the polymerization of vinyl acetate. In its most important application, polyvinyl acetate serves as the film-forming ingredient in water-based (latex) paints; it is also used in adhesives. Learn more about polyvinyl acetate in this article.
4、Polyvinyl Acetate
Chemical structure of polyvinyl acetate. Free radical vinyl polymerization of the monomer, vinyl acetate results in polyvinyl acetate. Hydrogen peroxide, peroxy sulfates, and other redox combinations can all be employed as polymerization catalysts.
Polyvinyl Acetate: Structure, Properties, Preparation & Uses
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Polyvinyl Acetate (PVAc)
Understanding its chemical structure, properties, and applications can help appreciate the significance of this compound in our daily life. The backbone of PVAc is made of vinyl acetate monomers. Vinyl acetate is an organic compound with the formula CH 3 COOCH=CH 2.
Figure 1. Structures of vinyl acetate and polyvinyl acetate.
This research explores the use of different pyrolysis-based techniques for studying the chemical composition of vinyl acetate (VAc) based emulsions widely used in modern-contemporary art...
Polyvinyl Acetate
Description Polyvinyl Acetate occurs as colorless to light yellow granules or glassy lumps. Identification Dissolve about 1 g of Polyvinyl Acetate in 5 ml of toluene, and proceed as directed under the Thin Film Method in Infrared Spectrophotometry.
poly (vinyl acetate) (CHEBI:32028)
Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on 'small' chemical compounds.
Poly (vinyl acetate): Structure, Preparation, Properties
It is an aliphatic rubbery synthetic polymer with chemical formula (C₄H₆O₂)n which belongs to the polyvinyl ester family. It is also known as wood glue or Elmers's glue due to its adhesive properties for which it is used as adhesive for porous materials like wood, paper, and cloth.
Polyvinyl Acetate (PVA) is a kind of high molecular compound polymerized by vinyl acetate monomers. It has wide applications in industry due to its unique physical and chemical properties.
1. Chemical Structure of Polyvinyl Acetate
Polyvinyl acetate is polymerized by ethylene and vinyl acetate under the action of a catalyst. Its molecular formula is (C2H4O)n, where n represents the degree of polymerization, i.e., the number of repeating units. Because vinyl acetate is a dicarboxylic acid and ethylene is an alkene, alternating carbon - carbon double bonds and oxygen - carbon double bonds are formed during the polymerization reaction. This special structure endows polyvinyl acetate with a series of unique properties.
2. Physical Properties
Polyvinyl acetate is a white or slightly yellow solid or powder, which has good solubility and can be dissolved in various organic solvents such as ethanol, ether, benzene, etc. Its glass transition temperature is relatively low, generally around 60℃, which enables it to maintain certain flexibility at low temperatures. polyvinyl acetate has good thermal stability and is not prone to decomposition.
3. Chemical Properties
Polyvinyl acetate has good water and oil resistance, but its acid resistance is poor and it easily reacts with acidic substances. For example, it can be corroded by concentrated sulfuric acid, nitric acid, and other strong acids, leading to the breakage of its molecular chain. Additionally, polyvinyl acetate also has a certain flame retardancy, but it is inferior to some other types of polymers.
4. Applications
Due to its good chemical stability and physical properties, polyvinyl acetate has wide applications in many fields:
- Textile Industry: Polyvinyl acetate can be used for producing various textiles such as stockings, underwear, carpets, etc. It has good elasticity and air permeability while being skin - friendly and not likely to cause allergic reactions.
- Packaging Materials: Due to its excellent barrier performance and transparency, polyvinyl acetate is often used to make food packaging bags, beverage bottles, etc.
- Paints and Adhesives: Polyvinyl acetate can be used as a basic raw material for paints and adhesives, which have good adhesion and wear resistance.
- Medical Materials: Owing to its good biocompatibility and non - toxicity, polyvinyl acetate is used to make medical gloves, surgical instruments, etc.
- Agriculture: Polyvinyl acetate can serve as a carrier for fertilizers to improve their utilization rate and effect.
5. Environmental Issues
As a synthetic high - molecular compound, the production process of polyvinyl acetate produces a certain amount of wastewater and waste gas. how to reduce its environmental impact during production and use has become an important research topic. Currently, researchers are exploring the use of copolymers with good biodegradability to replace polyvinyl acetate to reduce its environmental impact.
6. Future Prospects
With the development of science and technology, the demand for new materials is increasing. As a material with wide application prospects, there is still considerable room for development in the future research on polyvinyl acetate. For instance, by introducing novel components such as nano - materials and bio - based materials, its performance can be further improved; or by improving the production process to reduce production costs, making it more economical and practical.
as a multi - functional high - molecular material, polyvinyl acetate plays an important role in modern industry. Although some of its properties limit its application in certain fields, with the advancement of technology and in - depth research, it is believed that more innovations and applications will emerge in the future, enabling polyvinyl acetate to better serve human society.
