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CHXII15:POLYMERS

324972 Consider the following statements about PHBV and identify the correct one.

1 It is obtained by the copolymerisation.

2 It is used in speciality packaging, orthopaedic devices.

3 It undergoes bacterial degradation in the environment.

4 All of the above

CHXII15:POLYMERS

324973 Which among the following is a biodegradable polymer?

1 Polythene

2 Teflon

3 PVC

4 Dextron

Explanation:

Dextron is a biodegradable polymer. It is the condensation polymer of monomers, lactic acid and glycolic acid.
$\underset{L a c t i c a c i d}{n C H_{3} C H (O H) C O O H} + \underset{G l y c o l i c a c i d}{n C H_{2} (O H) - C O O H}$
$\overset{Polymersation}{\to}$
$\underset{D e x t r o n}{{[- O - C H (C H_{3}) - C O O - C H_{2} - C O O -]}_{n}}$

CHXII15:POLYMERS

324974 Which of the following is biodegradable polymer?

1 Polythene

2 Buna-S

3 Protein

4 PVC

CHXII15:POLYMERS

324975 Which is not the biodegradable polymer?

1 PHBV

2 Glyptal

3 Poly Glycolic acids and Poly lactic acid

4 Nylon-2-Nylon-6

CHXII15:POLYMERS

324976 Nylon-2-nylon-6 is a

1 Polyester

2 Polyurethane

3 Polyamide

4 None of the above

CHXII15:POLYMERS

324972 Consider the following statements about PHBV and identify the correct one.

1 It is obtained by the copolymerisation.

2 It is used in speciality packaging, orthopaedic devices.

3 It undergoes bacterial degradation in the environment.

4 All of the above

CHXII15:POLYMERS

324973 Which among the following is a biodegradable polymer?

1 Polythene

2 Teflon

3 PVC

4 Dextron

Explanation:

Dextron is a biodegradable polymer. It is the condensation polymer of monomers, lactic acid and glycolic acid.
$\underset{L a c t i c a c i d}{n C H_{3} C H (O H) C O O H} + \underset{G l y c o l i c a c i d}{n C H_{2} (O H) - C O O H}$
$\overset{Polymersation}{\to}$
$\underset{D e x t r o n}{{[- O - C H (C H_{3}) - C O O - C H_{2} - C O O -]}_{n}}$

CHXII15:POLYMERS

324974 Which of the following is biodegradable polymer?

1 Polythene

2 Buna-S

3 Protein

4 PVC

CHXII15:POLYMERS

324975 Which is not the biodegradable polymer?

1 PHBV

2 Glyptal

3 Poly Glycolic acids and Poly lactic acid

4 Nylon-2-Nylon-6

CHXII15:POLYMERS

324976 Nylon-2-nylon-6 is a

1 Polyester

2 Polyurethane

3 Polyamide

4 None of the above

CHXII15:POLYMERS

324972 Consider the following statements about PHBV and identify the correct one.

1 It is obtained by the copolymerisation.

2 It is used in speciality packaging, orthopaedic devices.

3 It undergoes bacterial degradation in the environment.

4 All of the above

CHXII15:POLYMERS

324973 Which among the following is a biodegradable polymer?

1 Polythene

2 Teflon

3 PVC

4 Dextron

Explanation:

Dextron is a biodegradable polymer. It is the condensation polymer of monomers, lactic acid and glycolic acid.
$\underset{L a c t i c a c i d}{n C H_{3} C H (O H) C O O H} + \underset{G l y c o l i c a c i d}{n C H_{2} (O H) - C O O H}$
$\overset{Polymersation}{\to}$
$\underset{D e x t r o n}{{[- O - C H (C H_{3}) - C O O - C H_{2} - C O O -]}_{n}}$

CHXII15:POLYMERS

324974 Which of the following is biodegradable polymer?

1 Polythene

2 Buna-S

3 Protein

4 PVC

CHXII15:POLYMERS

324975 Which is not the biodegradable polymer?

1 PHBV

2 Glyptal

3 Poly Glycolic acids and Poly lactic acid

4 Nylon-2-Nylon-6

CHXII15:POLYMERS

324976 Nylon-2-nylon-6 is a

1 Polyester

2 Polyurethane

3 Polyamide

4 None of the above

CHXII15:POLYMERS

324972 Consider the following statements about PHBV and identify the correct one.

1 It is obtained by the copolymerisation.

2 It is used in speciality packaging, orthopaedic devices.

3 It undergoes bacterial degradation in the environment.

4 All of the above

CHXII15:POLYMERS

324973 Which among the following is a biodegradable polymer?

1 Polythene

2 Teflon

3 PVC

4 Dextron

Explanation:

Dextron is a biodegradable polymer. It is the condensation polymer of monomers, lactic acid and glycolic acid.
$\underset{L a c t i c a c i d}{n C H_{3} C H (O H) C O O H} + \underset{G l y c o l i c a c i d}{n C H_{2} (O H) - C O O H}$
$\overset{Polymersation}{\to}$
$\underset{D e x t r o n}{{[- O - C H (C H_{3}) - C O O - C H_{2} - C O O -]}_{n}}$

CHXII15:POLYMERS

324974 Which of the following is biodegradable polymer?

1 Polythene

2 Buna-S

3 Protein

4 PVC

CHXII15:POLYMERS

324975 Which is not the biodegradable polymer?

1 PHBV

2 Glyptal

3 Poly Glycolic acids and Poly lactic acid

4 Nylon-2-Nylon-6

CHXII15:POLYMERS

324976 Nylon-2-nylon-6 is a

1 Polyester

2 Polyurethane

3 Polyamide

4 None of the above

CHXII15:POLYMERS

324972 Consider the following statements about PHBV and identify the correct one.

1 It is obtained by the copolymerisation.

2 It is used in speciality packaging, orthopaedic devices.

3 It undergoes bacterial degradation in the environment.

4 All of the above

CHXII15:POLYMERS

324973 Which among the following is a biodegradable polymer?

1 Polythene

2 Teflon

3 PVC

4 Dextron

Explanation:

Dextron is a biodegradable polymer. It is the condensation polymer of monomers, lactic acid and glycolic acid.
$\underset{L a c t i c a c i d}{n C H_{3} C H (O H) C O O H} + \underset{G l y c o l i c a c i d}{n C H_{2} (O H) - C O O H}$
$\overset{Polymersation}{\to}$
$\underset{D e x t r o n}{{[- O - C H (C H_{3}) - C O O - C H_{2} - C O O -]}_{n}}$

CHXII15:POLYMERS

324974 Which of the following is biodegradable polymer?

1 Polythene

2 Buna-S

3 Protein

4 PVC

CHXII15:POLYMERS

324975 Which is not the biodegradable polymer?

1 PHBV

2 Glyptal

3 Poly Glycolic acids and Poly lactic acid

4 Nylon-2-Nylon-6

CHXII15:POLYMERS

324976 Nylon-2-nylon-6 is a

1 Polyester

2 Polyurethane

3 Polyamide

4 None of the above

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