The rigid or stronger polymer from the given pair of the polymer is to be identified. Concept introduction : The hydrogen bonding, the resonance effect, and the shorter bond length increase the stability of the polymer and hence the polymer becomes more rigid. To determine: The rigid or stronger polymer from the polymer of ethylene glycol and teraphthalic acid and the polymer of 1.2 − diminoethane and teraphthalic acid.
The rigid or stronger polymer from the given pair of the polymer is to be identified. Concept introduction : The hydrogen bonding, the resonance effect, and the shorter bond length increase the stability of the polymer and hence the polymer becomes more rigid. To determine: The rigid or stronger polymer from the polymer of ethylene glycol and teraphthalic acid and the polymer of 1.2 − diminoethane and teraphthalic acid.
Solution Summary: The author identifies the rigid or stronger polymer from the given pair of polymers. The amine group forms hydrogen bond with the carbonyl carbon within the molecule.
Definition Definition Large and very high-molecular-weight substances that consist of hundreds to thousands of repeating units. Polymers are also known as macromolecules. Number-average-molecular weight is the measuring system for the polymers.
Chapter 22, Problem 81E
(a)
Interpretation Introduction
Interpretation: The rigid or stronger polymer from the given pair of the polymer is to be identified.
Concept introduction: The hydrogen bonding, the resonance effect, and the shorter bond length increase the stability of the polymer and hence the polymer becomes more rigid.
To determine: The rigid or stronger polymer from the polymer of ethylene glycol and teraphthalic acid and the polymer of
1.2−diminoethane and teraphthalic acid.
(b)
Interpretation Introduction
Interpretation: The rigid or stronger polymer from the given pair of the polymer is to be identified.
Concept introduction: The hydrogen bonding, the resonance effect, and the shorter bond length increase the stability of the polymer and hence the polymer becomes more rigid.
To determine: The rigid or stronger polymer from the polymer of
6−hydroxyheptanoicacid and the polymer of
4−hydoxybenzoicacid.
(c)
Interpretation Introduction
Interpretation: The rigid or stronger polymer from the given pair of the polymer is to be identified.
Concept introduction: The hydrogen bonding, the resonance effect, and the shorter bond length increase the stability of the polymer and hence the polymer becomes more rigid.
To determine: The rigid or stronger polymer from the polyacetylene and polyethylene.
First image: I have to show the mecanism for the reaction on the left, where the alcohol A is added fast in one portion
Second image: I have to show the mecanism of the reaction at the bottom. Also I have to show by mecanism why the reaction wouldn't work if the alcohol was primary
First image: I have to explain why the molecule C is never formed in those conditions.
Second image: I have to propose a synthesis for the lactone A
First image: I have to explain why the molecule C is never formed in these conditions
Second image: I have to propose a synthesis for the lactone A