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Draw the structure of the monomer used to make poly(phenylethene). - Leaving Cert Chemistry - Question B - 2020
Question B
Draw the structure of the monomer used to make poly(phenylethene).
Worked Solution & Example Answer:Draw the structure of the monomer used to make poly(phenylethene). - Leaving Cert Chemistry - Question B - 2020
Step 1
Draw the structure of the monomer used to make poly(phenylethene)
Answer
The monomer for poly(phenylethene) is styrene, which has the chemical structure represented as follows:
- Begin with the benzene ring structure:
- A hexagonal ring with alternating double bonds, with one hydrogen atom replaced by a vinyl group.
- The side chain (vinyl group) is composed of:
- A -CH=CH2 group, connected to the benzene ring.
Thus, the complete structure can be represented as:
H H
\\ /
C
/ \
C-C
||
C
||
C
||
C - H
/
H
In summary, the structure of the monomer can be defined as C6H5-CH=CH2, which corresponds to styrene.