Question

example of Bio & Non Bio degradable polymers

Answer 1

hi,

first we have to know the meaning of bio degradable and non-bio degradable polymers.

biodegradable polymers:-

the polymers which can break down by micro organisms or any other environmental factors.

non-biodegradable polymers:-

the polymers which cannot and never break down by micro organisms or other environmental factors.

EXAMPLES OF BIO DEGRADABLE POLYMERS:-

*Polyhydroxy butyrate (PHB)

 *Poly-Hydroxybutyrate-co-b-Hydroxy valerate (PHBV) 

*Polyglycolic acid (PGA)

*Polylactic acid (PLA)

*Poly (Î-caprolactone) (PCL) 

(1):Polyhydroxy butyrate is obtained from hydroxy butyric acid.

(ii) It is copolymer of 3-hydroxy butanoic acid and 3-hydroxy pentanoic acid, in which the monomer units are joined by linkages.

 (iii) : Polyglycolic acid is obtained by the chain polymerisation of cyclic dimer of glycolic acid.

(iv) : Polylactic acid is obtained by polymerisation of the cyclic dimer of lactic acid and removal of water by evaporation.

 (v) : It is obtained by polymerization of loctrane.

EXAMPLES OF NON BIO DEGRADABLE POLYMERS:-

*linear high-densitypolyethylene(HDPE)

*Branched low-density polyethylene (LDPE)

*Ultra-high molecular weight
polyethylene(UHMWPE)

these are different kinds of polymers which does not decompose by bacteria.

hope it helps....