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प्रश्न
Write the structures of the monomers used for getting the following polymers
Melamine – formaldehyde polymer
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उत्तर
Polymer : Melamine-formaldehyde polymer
Monomer : Melamine and formaldehyde
Structure :
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संबंधित प्रश्न
Write any ‘two’ uses of terylene.
Write the chemical reaction to prepare novolac polymer.
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Identify thermoplastic and thermosetting plastic from the following:
- PET
- Urea formaldehyde resin
- Polythene
- Phenol formaldehyde resin
Answer the following.
Match the following pairs:
| Name of polymer | Monomer |
| 1. Teflon | a. CH2 = CH2 |
| 2. PVC | b. CF2 = CF2 |
| 3. Polyester | c. CH2 = CHCl |
| 4. Polythene | d. C6H5OH and HCHO |
| 5. Bakelite | e. Dicarboxylic acid and polyhydoxyglycol |
Write chemical reaction for preparation of the following.
Buna-S
Write chemical reaction for preparation of the following.
Neoprene
The following structure represents the polymer:
\[\begin{array}{cc}
\ce{[-C-CH2-NH-C-(-CH2)5 NH -]_{{n}}}\\
\phantom{}||\phantom{.............}||\phantom{................}\\
\phantom{}\ce{O}\phantom{.............}\ce{O}\phantom{................}
\end{array}\]
Which of the following polymers, need atleast one diene monomer for their preparation?
(i) Dacron
(ii) Buna-S
(iii) Neoprene
(iv) Novolac
Write the structure of isoprene and the polymer obtained from it.
