Organic Chemistry: Principles And Mechanisms (second Edition)
Organic Chemistry: Principles And Mechanisms (second Edition)
2nd Edition
ISBN: 9780393630749
Author: KARTY, Joel
Publisher: W. W. Norton & Company
Question
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Chapter 26, Problem 26.72P
Interpretation Introduction

(a)

Interpretation:

Polycarbophil is a dietary fiber supplement. It is the calcium salt of a copolymer of acrylic acid and divinylglycol, a cross-linking agent. In the stomach, the calcium ions exchange for protons and in the higher pH of the intestine, the polymer absorbs 70 times its mass inwater. A structure for polycarbophil is to be proposed.

Concept introduction:

Polycarbophil is synthesized from copolymerization of acrylic acid and divinyl glycol. A molecule of divinylglycol is incorporated in a poly(acrylic acid) structure which leads to forming the radical and due to which, the second growth of the poly(acrylic acid) takes place which results in the formation of the cross-linked polymer.

Interpretation Introduction

(b)

Interpretation:

Polycarbophil is a dietary fiber supplement. It is thecalcium salt of a copolymer of acrylic acid and divinylglycol, a cross-linking agent. In the stomach, the calcium ions exchange for protons and, in the higher pH of the intestine, the polymer absorbs 70 times its mass inwater. It is to be explained why the cross-linking of the polymer is necessary for the given application.

Concept introduction:

Polycarbophil is synthesized from copolymerization of acrylic acid and divinyl glycol. A molecule of divinylglycol is incorporated in a poly(acrylic acid) structure which leads to forming the radical, and due to which, the second growth of the poly(acrylic acid) takes place which results in the formation of the cross-linked polymer. The cross-linked polymer is water-insoluble.

Interpretation Introduction

(c)

Interpretation:

It is to be explained why polycarbophil effective at providing bulk in the intestine and what will occur on a molecular level to polycarbophil.

Concept introduction:

Polycarbophil is synthesized from copolymerization of acrylic acid and divinyl glycol. A molecule of divinylglycol is incorporated in a poly(acrylic acid) structure which leads to forming the radical, and due to which, the second growth of the poly(acrylic acid) takes place which results in the formation of the cross-linked polymer. The cross-linked polymer is water-insoluble. In carboxylic acid, a strong H-bonding takes place.

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Chapter 26 Solutions

Organic Chemistry: Principles And Mechanisms (second Edition)

Ch. 26 - Prob. 26.11PCh. 26 - Prob. 26.12PCh. 26 - Prob. 26.13PCh. 26 - Prob. 26.14PCh. 26 - Prob. 26.15PCh. 26 - Prob. 26.16PCh. 26 - Prob. 26.17PCh. 26 - Prob. 26.18PCh. 26 - Prob. 26.19PCh. 26 - Prob. 26.20PCh. 26 - Prob. 26.21PCh. 26 - Prob. 26.22PCh. 26 - Prob. 26.23PCh. 26 - Prob. 26.24PCh. 26 - Prob. 26.25PCh. 26 - Prob. 26.26PCh. 26 - Prob. 26.27PCh. 26 - Prob. 26.28PCh. 26 - Prob. 26.29PCh. 26 - Prob. 26.30PCh. 26 - Prob. 26.31PCh. 26 - Prob. 26.32PCh. 26 - Prob. 26.33PCh. 26 - Prob. 26.34PCh. 26 - Prob. 26.35PCh. 26 - Prob. 26.36PCh. 26 - Prob. 26.37PCh. 26 - Prob. 26.38PCh. 26 - Prob. 26.39PCh. 26 - Prob. 26.40PCh. 26 - Prob. 26.41PCh. 26 - Prob. 26.42PCh. 26 - Prob. 26.43PCh. 26 - Prob. 26.44PCh. 26 - Prob. 26.45PCh. 26 - Prob. 26.46PCh. 26 - Prob. 26.47PCh. 26 - Prob. 26.48PCh. 26 - Prob. 26.49PCh. 26 - Prob. 26.50PCh. 26 - Prob. 26.51PCh. 26 - Prob. 26.52PCh. 26 - Prob. 26.53PCh. 26 - Prob. 26.54PCh. 26 - Prob. 26.55PCh. 26 - Prob. 26.56PCh. 26 - Prob. 26.57PCh. 26 - Prob. 26.58PCh. 26 - Prob. 26.59PCh. 26 - Prob. 26.60PCh. 26 - Prob. 26.61PCh. 26 - Prob. 26.62PCh. 26 - Prob. 26.63PCh. 26 - Prob. 26.64PCh. 26 - Prob. 26.65PCh. 26 - Prob. 26.66PCh. 26 - Prob. 26.67PCh. 26 - Prob. 26.68PCh. 26 - Prob. 26.69PCh. 26 - Prob. 26.70PCh. 26 - Prob. 26.71PCh. 26 - Prob. 26.72PCh. 26 - Prob. 26.73PCh. 26 - Prob. 26.74PCh. 26 - Prob. 26.75PCh. 26 - Prob. 26.76PCh. 26 - Prob. 26.77PCh. 26 - Prob. 26.78PCh. 26 - Prob. 26.1YTCh. 26 - Prob. 26.2YTCh. 26 - Prob. 26.3YTCh. 26 - Prob. 26.4YTCh. 26 - Prob. 26.5YTCh. 26 - Prob. 26.6YTCh. 26 - Prob. 26.7YTCh. 26 - Prob. 26.8YTCh. 26 - Prob. 26.9YTCh. 26 - Prob. 26.10YTCh. 26 - Prob. 26.11YTCh. 26 - Prob. 26.12YTCh. 26 - Prob. 26.13YTCh. 26 - Prob. 26.14YTCh. 26 - Prob. 26.15YTCh. 26 - Prob. 26.16YTCh. 26 - Prob. 26.17YTCh. 26 - Prob. 26.18YTCh. 26 - Prob. 26.19YTCh. 26 - Prob. 26.20YTCh. 26 - Prob. 26.21YTCh. 26 - Prob. 26.22YTCh. 26 - Prob. 26.23YT
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