Polar polymers is a polymeric group that contains polar or charged functional groups. They are soluble in water. Polar plastics do not have a fully covalent bond. They have slight imbalance in the electronic charge of the molecule. Polyamide, polycarbonate, poly(methyl metha acrylate), polyvinyl chloride, nylon, and acrylonitrile butadiene styrene are some of the examples of polar polymers.
These polymers have high strength and crystallinity, but lower elongation properties. They also have high inter molecular attraction forces due to the presence of polar-polar bond and high glass transition temperature. Polar polymers help increase interphase adhesion and provide compatibility between polar polymers and polyolefins. They are also ideal with non-polar substrates such as metal, glass, and thermoset rubbers.
Polar polymers are used in various fields such as printing films, adhesives, coatings, packaging, and automotive. Rise in need of improving wetting and adhesion properties of polymer surfaces by incorporating polar groups into the chemically nonpolar surface structure is driving the polar polymers market. Polar polymers are capable of absorbing moisture from the environment. This makes them suitable with other substrates. For instance, nylon is a polar polymer that can absorb 8% to 9% water, which is more than 100 times as much as non-polar PPE/HIPS compounds.
Increase in demand for the improvement of physical and mechanical properties of polar resins such as nylon and dacron resins by blending with EPM and EPDM resins is another factor boosting the market. They are widely used in hot melt coatings and adhesives to impart toughness, flexibility, and improved adhesion. Polar polymers are used in the manufacture of drug delivery systems in the pharmaceutical industry. For instance, polyacrylamide is a polar polymer that contains less than 0.18% of acrylamide monomers. It is used in soft-shell gelatin capsules for the film-forming purpose. Therefore, increase in demand in the pharmaceutical industry is expected to propel the global polar polymers market.
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