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Tuning the Structural Properties of Cellulose Acetate Thin Films : = A Demonstration of Confinement and Antiplasticization in Cellulose Acetate Butyrate.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Tuning the Structural Properties of Cellulose Acetate Thin Films :/
Reminder of title:	A Demonstration of Confinement and Antiplasticization in Cellulose Acetate Butyrate.
Author:	Parkhurst, Keegan Reece.
Description:	1 online resource (70 pages)
Notes:	Source: Masters Abstracts International, Volume: 84-05.
Contained By:	Masters Abstracts International84-05.
Subject:	Chemical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9798357546685

Tuning the Structural Properties of Cellulose Acetate Thin Films : = A Demonstration of Confinement and Antiplasticization in Cellulose Acetate Butyrate.
Parkhurst, Keegan Reece.

Tuning the Structural Properties of Cellulose Acetate Thin Films :A Demonstration of Confinement and Antiplasticization in Cellulose Acetate Butyrate. - 1 online resource (70 pages)

Source: Masters Abstracts International, Volume: 84-05.

Thesis (M.S.)--Rose Hulman Institute of Technology, 2022.

Includes bibliographical references

The development of high-performance cellulose acetate thin-film composite membranes will be essential to solving the growing water scarcity problems. To do this, understanding the fundamental structure of thin cellulosic films and its relation to transport is essential. In this work, thin cellulose acetate butyrate films were fabricated at varying thickness and treatments, such as soaking and plasticizer treatment. Their mechanical properties were analyzed using a surface wrinkling approach, and their hygroscopic properties were measured using swelling measurements and surface wrinkling under humid conditions. This work demonstrates confinement in cellulose acetate butyrate films at thicknesses below 45 to 70 nanometers. Plasticization is demonstrated in cellulose acetate butyrate film with an increase in swelling activity, but a decrease at low plasticizer concentration, indicating antiplasticization. There is a discussion on how these observations indicate changes in fundamental structural properties and can be used to predict transport properties.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798357546685Subjects--Topical Terms:

555952
Chemical engineering.
Subjects--Index Terms:

AntiplasticizationIndex Terms--Genre/Form:

554714
Electronic books.

Tuning the Structural Properties of Cellulose Acetate Thin Films : = A Demonstration of Confinement and Antiplasticization in Cellulose Acetate Butyrate.
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520 $a The development of high-performance cellulose acetate thin-film composite membranes will be essential to solving the growing water scarcity problems. To do this, understanding the fundamental structure of thin cellulosic films and its relation to transport is essential. In this work, thin cellulose acetate butyrate films were fabricated at varying thickness and treatments, such as soaking and plasticizer treatment. Their mechanical properties were analyzed using a surface wrinkling approach, and their hygroscopic properties were measured using swelling measurements and surface wrinkling under humid conditions. This work demonstrates confinement in cellulose acetate butyrate films at thicknesses below 45 to 70 nanometers. Plasticization is demonstrated in cellulose acetate butyrate film with an increase in swelling activity, but a decrease at low plasticizer concentration, indicating antiplasticization. There is a discussion on how these observations indicate changes in fundamental structural properties and can be used to predict transport properties.
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