Formaldehyde Resins

Elastomers/Fibres || Thermoplastics and Thermosetting Polymers || Nylon || Bakelite || Melamine Formaldehyde Resin || Biodegradable Polymer

Write Monomers and chemical Reaction of Malamine Formaldehyde resin.

Match the column : {:(,"Polymer",,"Commercial ",),((i),"Polyester of glycol and phthalic acid",(a),"Novolac",),((ii),"Copolymer of 1,3-butadiene and styrene",(b),"Glyptal",),((iii),"Phenol and formaldehyde resins",(c ),"Buna-S",),((iv),"Polyester of glycol and terephthalic acid ",(d),"Buna-N",),((v),"Copolymer of 1,3-butadiene and acrylonitrile",(e),"Dacron",):}

Match the column : {:(,"Polymer",,"Commercial name",),((i),"Polyester of glycol and phthalic acid",(a),"Novolac",),((ii),"Copolymer of 1,3-butadiene and styrene",(b),"Glyptal",),((iii),"Phenol and formaldehyde resins",(c ),"Buna-S",),((iv),"Polyester of glycol and terephthalic acid ",(d),"Buna-N",),((v),"Copolymer of 1,3-butadiene and acrylonitrile",(e),"Dacro",):}

Write the structure and use of each of the following: Urea formaldehyde resin

Identify Thermoplastic and Thermosetting Plastics from the following- Urea formaldehyde resin

Write the monomer units, structure and two uses of the following polymer: Urea formaldehyde resin

Urea formaldehyde resin and phenol formaldehyde resin are…………….. polymers.

(A) Urea formaldehyde resin can be reused again even on strong heating. (R) Urea formaldehyde resin is a Thermo- plastic polymer.