Home
Class 12
CHEMISTRY
Polyvinyl alcohol is an important polyme...

Polyvinyl alcohol is an important polymer. The structure is given below
`(-CH_(2)-underset(OH)underset("| ")"CH"-CH_(2)-underset(OH)underset("| ")"CH"-CH_(2)-underset(OH)underset("| ")"CH"-)`
It is prepared by polymerization of

A

`CH_(2)=CH-OH`

B

`CH_(2)=CH-OCOCH_(3)`, followed by hydrolysis

C

`CH_(2)=CH-CN`, followed by hydrolysis

D

`CH_(2)=CH-COOCH_(3)`, followed by hydrolysis

Text Solution

AI Generated Solution

The correct Answer is:
To determine what polyvinyl alcohol is prepared from, we need to understand the process of polymerization and the specific monomer involved in the formation of polyvinyl alcohol. ### Step-by-Step Solution: 1. **Understanding Polymers and Monomers**: - Polymers are large molecules made up of repeating structural units called monomers. - The process of combining monomers to form a polymer is known as polymerization. 2. **Identifying Polyvinyl Alcohol**: - Polyvinyl alcohol (PVA) is a synthetic polymer that is soluble in water and is known for its film-forming properties. - The structure of polyvinyl alcohol consists of repeating units of -CH2-CHOH-. 3. **Identifying the Monomer**: - Polyvinyl alcohol is specifically derived from polyvinyl acetate (PVAc). - The chemical structure of polyvinyl acetate is CH2=CHOCOCH3. 4. **Polymerization Process**: - Polyvinyl acetate undergoes hydrolysis (reaction with water) to convert into polyvinyl alcohol. - The hydrolysis of polyvinyl acetate involves breaking the ester bond and replacing it with a hydroxyl group (-OH), resulting in the formation of polyvinyl alcohol. 5. **Conclusion**: - Therefore, polyvinyl alcohol is prepared by the hydrolysis of polyvinyl acetate. ### Final Answer: Polyvinyl alcohol is prepared by the hydrolysis of polyvinyl acetate. ---
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

Give IUPAC name of the compound given below. CH_(3)-underset(Br)underset(|)CH-CH_(2)-CH_(2)-underset(OH)underset(|)CH-CH_(3)

IUPAC name of CH_(3)-underset(CH_(3))underset(|)(CH)-CH_(2)-underset(CH_(3))underset(|)(CH)-CH_3 is

Knowledge Check

  • Give IUPAC name of the compund given below: CH_3-underset(Cl)underset(|)CH-CH_2-CH_2-underset(OH)underset(|)CH-CH_3

    A
    2-Chloro-5-hydroxyhexane
    B
    2-Hydroxy-5-chlorohexane
    C
    5-Chlorohexan-2-ol
    D
    Chlorohexan-5-ol

  • The number of meso form of the given compound is : CH_(3)-underset(OH) underset(|)(CH)-underset(OH) underset(|)(CH)-underset(OH) underset(|)(CH)-CH_(3)

    A
    2
    B
    3
    C
    4
    D
    8

  • The IUPAC name of CH_3 - underset(CH_3)underset(|) CH - underset(OH)underset(|) CH - underset(OH)underset(|) CH - CHO is

    A
    2, 3-Dihydroxy-4-methylpentanal
    B
    1-oxo-2, 3-Dihydroxy-4-methylpentane
    C
    2,3-Dihydroxy-4-methylpentanone
    D
    1, 2-Dihydroxy-3-methylbutanecarbaldehyde

    • Similar Questions

    Explore conceptually related problems

    The IUPAC name the compound CH_(3)-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH)-underset(OH)underset(|)(CH_(2)) is

    IUPAC Name of the given compound CH_(3)-underset(O)underset(||)(C)-CH_(2)-underset(CN)underset(|)(CH)-CH_(2)-CH_(3)

    IUPAC name of CH_(3)-underset((CH_(2)CH_(3)))underset(|)CH-CH_(2)-underset(CN)underset(|)CH-CH_(3) is

    Give IUPAC name of the compound given below. CH_(3)-underset(Cl)underset(|)(CH)-(CH_(2))-CH_(2)-underset(OH)underset(|)(CH)-CH_(3)

    The IUPAC name of CH_(3)-underset(OH)underset(|)(CH)-CH=underset(CH_(3))underset(|)(C )-CHO is

    Home
    Profile