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Suggest two ways to reduce the errors of determining the molecular weight of a polymer(polystyrene pellets) by suspended level dilution viscometer.

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

Chapter34: Particle Size Determination

Section: Chapter Questions

Problem 34.14QAP

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Question

Suggest two ways to reduce the errors of determining the molecular weight of a polymer(polystyrene pellets) by suspended level dilution viscometer.

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.

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