Polar polymers
Polypedia > Properties of polymers > Chemical properties
| Polars polymers | |
In polymers, the bond between monomers is always carried out by means of covalent bonds. Still, the forces responsible for cohesion between different monomers can be very diverse in nature, and are strongly conditioned by the substituents of the main chain, and by the characteristics of the atoms. The polarity and volume of these atoms will particularly affect the cohesion forces between monomers, which in turn will determine the material's flexibility, glass transition temperature, melting temperature and crystallization capacity among other properties. The polymers are divided into 2 categories, polar polymers and non-polar polymers. In general, monomers containing only C and H atoms, similar as electronegativity, are non-polar. The monomers contain highly electronegative atoms, such as Cl, F, O, N, S that give rise to polymers that contain permanent electric dipoles called polar polymers. In general, the greater the cohesion forces (hydrogen bridges) between the chains, the more rigid the polymer will be and the higher the melting temperature in the case of crystalline polymers or the softening temperature in the case of non-polymer polymers. crystalline (amorphous). |  polare  no polare |