Buna-$N$ synthetic rubber is a copolymer of
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Buna-N is unusually high resistance to oils, fuels, and other chemicals and for its superior strength. It's often found in automotive, marine, and aeronautical fuel and oil systems, disposable non-latex gloves, belts, hoses, o-rings and so and so forth. Buna-N is a polymer comprising 2 polymers. This is why it is called a copolymer.
- $H_2C=CH-CH=CH_2$ and $H_5C_6-CH=CH_2$
- $H_2C=CH-CN$ and $H_2C=CH-CH=CH_2$
The Correct Option is C
Solution and Explanation
Buna-N is a co-polymer of butadiene and acrylonitrile.
Copolymerisation is a type of polymerisation reaction that involves more than one type of monomer. Buna-N is one such polymer that is formed by copolymerisation. Buna−N is a synthetic rubber copolymer that is made up of 1,3−Butadiene (H2C=CH – CH=CH2) and acrylonitrile (H2C=CH– CN). The synthesis is given below:
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Concepts Used:
Biodegradable Polymers
Microorganisms destroy biodegradable polymers in an appropriate amount of time, ensuring that biodegradable polymers and their degraded products have a low environmental result. Enzyme-catalyzed processes shatter these polymers down into little segments, and microorganisms manufacture these enzymes.
Biodegradable Polymers: Examples
- Poly-β-hydroxybutyrate-co-β-hydroxy valerate (PHBV)
- Polylactic Acid (PLA)
- Poly (ε-caprolactone) (PCL)
- Nylon-2-Nylon-6
Biodegradable Polymers: Properties
- Can maintain strong mechanical unification until they are degraded.
- Degradation, in general, starts at the end groups because biodegradable polymers have exceptionally strong carbon backbones that are difficult to crack.
- Non-toxic in nature.
- Degradation rates can be controlled.
- Lack of crystallinity, which inhibits access to end groups.
- Hydrophilic polymers.
Read More: Biopolymers