Home
Class 12
CHEMISTRY
A natural linear polymer of 2 methyl -1,...

A natural linear polymer of 2 methyl -1,3 - butadiene becomes hard on treatment with suphur between 373 to 415 K and -s - s- bonda are formed between chains.Write the structure of the product of this treatment?

Text Solution

Verified by Experts

`CH_(2)=underset(CH_(3))underset("| ")"C "-CH=CH_(2)rarr underset("(natural rubber)")underset("Polyisoprene")([--CH_(2)-underset(CH_(2))underset("| ")"C "=CH-CH_(2)--]_(n))`
When it is heated with S at 373 - 413 K, it result into `-S-S-` links forming

This is called vulcanisation of rubber.
Promotional Banner

Topper's Solved these Questions

  • POLYMERS

    MODERN PUBLICATION|Exercise NCERT (EXemplar Problems) (Matching Type Questions)|8 Videos

  • POLYMERS

    MODERN PUBLICATION|Exercise NCERT (EXemplar Problems) (Assertion and Reason Type Questions)|7 Videos

  • POLYMERS

    MODERN PUBLICATION|Exercise NCERT (EXemplar Problems) (Multiple Choice Questions (Type-II))|11 Videos

  • ORGANIC COMPOUNDS CONTAINING NITROGEN

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|5 Videos

  • SOLID STATE

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos

Similar Questions

Explore conceptually related problems

Rubber is a naturally occurring polymer, which is a linear polymer of isoprene. It can be easily deformed but regains its original shape after the stress is relieved. The properties of natural rubber can be modified and improved by process of vulcanization. It is mixed with 3 to 5% sulphur and heated at 373-423 K. This forms cross links through disulphide bonds (-S-S-) , which make rubber hard, tough with greater tensile strength. There are many different formulations of synthetic rubbers. These are copolymers in which one of the monomer is isoprene. Some common examples are neoprene rubber, Buna-S, Buna-N, etc. What is the structure and IUPAC name of monomers of natural rubber?

Rubber is a naturally occurring polymer, which is a linear polymer of isoprene. It can be easily deformed but regains its original shape after the stress is relieved. The properties of natural rubber can be modified and improved by process of vulcanization. It is mixed with 3 to 5% sulphur and heated at 373-423 K. This forms cross links through disulphide bonds (-S-S-) , which make rubber hard, tough with greater tensile strength. There are many different formulations of synthetic rubbers. These are copolymers in which one of the monomer is isoprene. Some common examples are neoprene rubber, Buna-S, Buna-N, etc. Name the monomers of synthetic rubber Buna-S.

Rubber is a naturally occurring polymer, which is a linear polymer of isoprene. It can be easily deformed but regains its original shape after the stress is relieved. The properties of natural rubber can be modified and improved by process of vulcanization. It is mixed with 3 to 5% sulphur and heated at 373-423 K. This forms cross links through disulphide bonds (-S-S-) , which make rubber hard, tough with greater tensile strength. There are many different formulations of synthetic rubbers. These are copolymers in which one of the monomer is isoprene. Some common examples are neoprene rubber, Buna-S, Buna-N, etc. Does natural rubber has cis- or trans-configuration about the double bonds?

Rubber is a naturally occurring polymer, which is a linear polymer of isoprene. It can be easily deformed but regains its original shape after the stress is relieved. The properties of natural rubber can be modified and improved by process of vulcanization. It is mixed with 3 to 5% sulphur and heated at 373-423 K. This forms cross links through disulphide bonds (-S-S-) , which make rubber hard, tough with greater tensile strength. There are many different formulations of synthetic rubbers. These are copolymers in which one of the monomer is isoprene. Some common examples are neoprene rubber, Buna-S, Buna-N, etc. What does the letter 'N' stands for in synthetic rubber Buna-N.

MODERN PUBLICATION-POLYMERS-NCERT (EXemplar Problems) (Short Answer Type Questions)
  1. A natural linear polymer of 2 methyl -1,3 - butadiene becomes hard on ...

    Text Solution

    |

  2. Identify the type of polymer. -A-A-A-A-A-A-

    Text Solution

    |

  3. Identify the type of polymer -A-B-B-A-A-A-B-A-

    Text Solution

    |

  4. out of chain growth polymerisation and step growth polymerisation,in w...

    Text Solution

    |

  5. Identify the type of polymer given in the following figure.

    Text Solution

    |

  6. Identify the polymer given below :

    Text Solution

    |

  7. Why are rubber called elastomers?

    Text Solution

    |

  8. Can enzyme be called a polymer?

    Text Solution

    |

  9. Can nucleic acid protein and starch be considered as step growth polym...

    Text Solution

    |

  10. How is the following resin intermediate prepared and which polymers is...

    Text Solution

    |

  11. To have practical applications why are cross links quetioined in rubb...

    Text Solution

    |

  12. Why does cis polyisoprene posses elastic porperty?

    Text Solution

    |

  13. What is the structural difference between HDP and LDP? How does the st...

    Text Solution

    |

  14. What is the role of benzoyl peroxide in addition polymerisation of alk...

    Text Solution

    |

  15. Which factor imparts crystalline nature to a polymer like nylon?

    Text Solution

    |

  16. Name the polymer used in laminating sheets and give the name of monome...

    Text Solution

    |

  17. Which type of biomolecules have some structural similarity with synthe...

    Text Solution

    |

  18. Why should the monomer used in addition polymerisation through free r...

    Text Solution

    |