Natural rubber has
All trans-configuration
Alternate cis and trans configuration
Random cis and trans configuration
Random cis and trans configuration
D.
Random cis and trans configuration
The repeating unit in natural rubber has the cis-configurations with chain extensions on the same side of the ethylene double bond, which is essential for elasticity. If the configuration is trans, the polymer is hard plastic.
All cis-configuration.
Biodegradable polymer which can be produced from glycine and aminocapric acid is
nylon 2-nylon 6
PHBV
buna -N
buna -N
Which of the following organic compounds polymerises to form the polyester dacron?
Propylene and para HO-(C6H4)-OH
Benzoic acid and ethanol
Terephthalic acid and ethylene glycol
Terephthalic acid and ethylene glycol
Which of these is not a monomer for high molecular mass silicone polymer?
MeSiCl3
Me2SiCl2
Me3SiCl
Me3SiCl
Which of the following statements is false?
Artificial silk is derved from cellulose
Nylon-66 is an example of elastomer
The repeat unit in natural rubber isoprene
The repeat unit in natural rubber isoprene
Which one of the following sets forms the biodegradable polymer?
CH2 =CH-CN and CH2 =CH-CH=CH2
H2N-CH2-COOH and H2N-(CH2)5-COOH
HO-CH2-CH2-OH and
HO-CH2-CH2-OH and