a) Syndiotactic polyacrylonitrile
Interpretation:
Draw the three-dimensional structure of the polymeric products given in the question.
Concept introduction:
Isotactic, syndiotactic, and atactic are the stereochemical forms. The
Syndiotactic are the macromolecules in which the (-R) groups are arranged in an alternate manner along the long chain of the polymer. Gutta percha is also an example for Syndiotactic polymer.
In atactic form, the substituents are placed in a random manner along the long chain.
The important point to note here is that the polymer obtained from the chain growth
b) Atactic poly(methyl methacrylate)
Interpretation:
Draw the three-dimensional structure of the polymeric products given in the question.
Concept introduction:
Isotactic, syndiotactic, and atactic are the stereochemical forms. The polymer having the (-R) group on the same side of the macromolecule backbone (zig-zag bone) is known as isotactic polymer. An isotactic macromolecule consists of 100% meso diads.
Syndiotactic are the macromolecules in which the (-R) groups are arranged in an alternate manner along the long chain of the polymer. Gutta percha is also an example for Syndiotactic polymer.
In atactic form, the substituents are placed in a random manner along the long chain.
The important point to note here is that the polymer obtained from the chain growth polymerization mechanism must have chiral carbons to possess these structures. If the polymer formed does not have chiral carbon then it cannot occur in isotactic, syndiotactic and atactic forms.
c) Isotactic poly(vinyl chloride)
Interpretation:
Draw the three-dimensional structure of the polymeric products given in the question.
Concept introduction:
Isotactic, syndiotactic, and atactic are the stereochemical forms. The polymer having the (-R) group on the same side of the macromolecule backbone (zig-zag bone) is known as isotactic polymer. An isotactic macromolecule consists of 100% meso diads.
Syndiotactic are the macromolecules in which the (-R) groups are arranged in an alternate manner along the long chain of the polymer. Gutta percha is also an example for Syndiotactic polymer.
In atactic form, the substituents are placed in a random manner along the long chain.
The important point to note here is that the polymer obtained from the chain growth polymerization mechanism must have chiral carbons to possess these structures. If the polymer formed does not have chiral carbon then it cannot occur in isotactic, syndiotactic and atactic forms.
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Chapter 31 Solutions
OWLv2 with Student Solutions Manual eBook, 4 terms (24 months) Printed Access Card for McMurry's Organic Chemistry, 9th
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- EXERCISES: Complete the following exercises. You must show all work to receive full credit. 1. How many molecular orbitals can be built from the valence shell orbitals in O2? 2. Give the ground state electron configuration (e.g., 02s² 0*2s² П 2p²) for these molecules and deduce its bond order. Ground State Configuration Bond Order H2+ 02 N2arrow_forward7. Draw the Lewis structures and molecular orbital diagrams for CO and NO. What are their bond orders? Are the molecular orbital diagrams similar to their Lewis structures? Explain. CO Lewis Structure NO Lewis Structure CO Bond Order NO Bond Order CO Molecular Orbital Diagram NO Molecular Orbital Diagramarrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward
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