Syndiotactic poly (vinyl chloride) segments need to be drawn. Concept introduction: If the polymer formed has chiral centers then with the relative configuration of the chiral centers the polymers can be classified as isotactic, Syndiotactic or atactic. When monosubstituted ethylenes are used as monomer the polymer formed has huge number of chiral centers. Isotactic means all the chiral center has the same configuration. Syndiotactic means the chiral centers has alternating configuration. Atactic means the chiral centers are in random arrangement.

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Chapter 27, Problem 41PP

(a)

Interpretation Introduction

Interpretation:

Syndiotactic poly (vinyl chloride) segments need to be drawn.

Concept introduction:

If the polymer formed has chiral centers then with the relative configuration of the chiral centers the polymers can be classified as isotactic, Syndiotactic or atactic. When monosubstituted ethylenes are used as monomer the polymer formed has huge number of chiral centers. Isotactic means all the chiral center has the same configuration. Syndiotactic means the chiral centers has alternating configuration. Atactic means the chiral centers are in random arrangement.

(b)

Interpretation Introduction

Interpretation:

Isotactic polystyrene segments need to be drawn.

Concept introduction:

If the polymer formed has chiral centers then with the relative configuration of the chiral centers the polymers can be classified as isotactic, Syndiotactic or atactic. When monosubstituted ethylenes are used as monomer the polymer formed has huge number of chiral centers. Isotactic means all the chiral center has the same configuration. Syndiotactic means the chiral centers has alternating configuration. Atactic means the chiral centers are in random arrangement.

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I have a question about this problem involving mechanisms and drawing curved arrows for acids and bases. I know we need to identify the nucleophile and electrophile, but are there different types of reactions? For instance, what about Grignard reagents and other types that I might not be familiar with? Can you help me with this? I want to identify the names of the mechanisms for problems 1-14, such as Gilman reagents and others. Are they all the same? Also, could you rewrite it so I can better understand? The handwriting is pretty cluttered. Additionally, I need to label the nucleophile and electrophile, but my main concern is whether those reactions differ, like the "Brønsted-Lowry acid-base mechanism, Lewis acid-base mechanism, acid-catalyzed mechanisms, acid-catalyzed reactions, base-catalyzed reactions, nucleophilic substitution mechanisms (SN1 and SN2), elimination reactions (E1 and E2), organometallic mechanisms, and so forth."