The following table lists molecular weight data for a polyvinyl fluoride (PVF) material. Compute the degree of polymerization using the number-average molecular weight. Note that each PVF mer consists of 2 carbon (A = 12), 3 hydrogen (A = 1), and 1 fluorine (A = 19).

The following table lists molecular weight data for a polyvinyl fluoride (PVF) material. Compute the degree of polymerization using the number-average molecular weight. Note that each PVF mer consists of 2 carbon (A = 12), 3 hydrogen (A = 1), and 1 fluorine (A = 19).

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter7: Components Of Optical Instruments

Section: Chapter Questions

Problem 7.14QAP

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Concept explainers

Polymerization Kinetics

Polymerization is a chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that diverge in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes. Polymerization is generally classified into step-growth and chain polymerization. Polymers are categorized into linear polymer and cross-linked polymers that are produced either by condensation or additional polymerization.

Question

Molecular Weight
Range (g/mol)
X;
W;
8,000–20,000
0.05
0.02
20,000–32,000
0.15
0.08
32,000-44,000
0.21
0.17
44,000-56,000
0.28
0.29
56,000–68,000
0.18
0.23
68,000–80,000
0.10
0.16
80,000–92,000
0.03
0.05
937
О 837
O 1037
О 1137

The following table lists molecular
weight data for a polyvinyl fluoride
(PVF) material.
Compute the degree of polymerization
using the number-average molecular
weight.
Note that each PVF mer consists of 2
carbon (A = 12), 3 hydrogen (A = 1),
and 1 fluorine (A = 19).
%3D
Molecular Weight
Range (g/mol)
W;
8,000–20,000
0.05
0.02
20,000–32,000
0.15
0.08
32,000-44,000
0.21
0.17
44.000–56.000
0.28
0.29

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