Name the process and the name of product when interaction of ethylene glycol and terephthalic acid takes place (a) Copolymerization, Benzene -1,4 – dicarboxlic acid and ethane 1,2-diol
(b) Step Growth polymerization , Terylene
(c) Vulcanization , Dacron
(d) Chain growth polymerization, Teflon
When a Cyclohexanoxime is treated with H2SO4 compound “A” is formed on Heating “A” with H2O at high temperature it forms compound “B”. Identify A and B.
Which of the following is a natural polymer?
(b) poly (Butadiene-styrene)
(d) poly (Butadiene-acrylonitrile)
On oxidizing Methanol it gives compound “A” which further reacts with Heterocyclic Aromatic amine Forms a compound “B” which is used for the manufacture of synthetic polymer. Identify the Compound A and B.
Novolac is a polymer obtain by condensing –
(a) formaldehyde and Melamine
(b)phenol and Formaldehyde
(c) melamine and Formaldehyde
(d) styrene and 1,3- Butadiene
Ziegler – Natta Catalyst is used in the preparation of –
(a) low density polythene
(b) high density polythene
Which of the following polymer of glucose is stored by animals?
Vulcanisation of rubber makes –
(a) more elastic
(b) soluble in inorganic solvent
(c) more Stiff
(d)a and c both
Regarding cross-linking or network polymers, which of the following statements is incorrect?
(a) They contain strong covalent bonds in their polymer chains.
(b) They contain covalent bonds between various linear polymer chains.
(c) Example are bakelite and melamine.
(d) They are formed from bi-and tri-functional monomers.
Name the substances which inhibit free radical polymerization.
On complete hydrogenation, natural rubber produces:
(a) Ethylene-propylene copolymer
(b) Vulcanised rubber
What are plasticizers?
Give structure and preparation method for Nylon 6 and Nylon 6,6.
Name the compound which is biodegradable in nature and used in orthopaedic devices.
Name one thermosetting and one thermoplastic polymer.
Give monomeric units of –
Which of the following polymer can be used for lubrication and as an insulator?
Which polymer is known as Gutta percha? Give its structural Formula.
Write the equation for synthesis of glyptal.
Match the material given with the polymer.
(a) Natural rubber - Nylon
(b) Wood laminates - Neoprene
(c) Ropes and Fibres - Dacron
(d) Polyester fabric - Melamine-Formaldehyde resins
(e) Synthetic rubber - Urea-Formaldehyde
(f) Unbreakable crockery - cis-Polyisoprene