arrange arrange the following Polymers in increasing order of their intermolecular forces first nylon 66 bunas polythene second nylon 6 neoprene polyvinyl chloride
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Polymers can be classified on the basis of molecular forces like vander waals forces, hydrogen bonds & dipole dipole interactions.They are classified as :
1 elastomers- they have elastic character & have weak intermolecular forces.Eg natural rubber
2 Fibres- thay have strong hydrogen bond or dipole dipole interactions between polymers chain.Eg nylon 66
3 Thermoplastics- they have intermolecular forces intermediate between elastomers & fibres.Eg polythene
4 Thermosetting polymers- they undergoes permanent change on heating.Eg bakelite
(i) Buna − S < polythene < Nylon 6, 6
(ii) Neoprene < polyvinyl chloride < Nylon 6
1 elastomers- they have elastic character & have weak intermolecular forces.Eg natural rubber
2 Fibres- thay have strong hydrogen bond or dipole dipole interactions between polymers chain.Eg nylon 66
3 Thermoplastics- they have intermolecular forces intermediate between elastomers & fibres.Eg polythene
4 Thermosetting polymers- they undergoes permanent change on heating.Eg bakelite
(i) Buna − S < polythene < Nylon 6, 6
(ii) Neoprene < polyvinyl chloride < Nylon 6
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