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Self-Assembled Structures with Cryst...

Valentine, Connor S.

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Self-Assembled Structures with Crystalline Order in Aqueous Block Polymer Systems.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Self-Assembled Structures with Crystalline Order in Aqueous Block Polymer Systems./
Author:	Valentine, Connor S.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	201 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-10, Section: B.
Contained By:	Dissertations Abstracts International83-10B.
Subject:	Polymer chemistry. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29064563
ISBN:	9798209995623

Self-Assembled Structures with Crystalline Order in Aqueous Block Polymer Systems.
Valentine, Connor S.

Self-Assembled Structures with Crystalline Order in Aqueous Block Polymer Systems. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 201 p.

Source: Dissertations Abstracts International, Volume: 83-10, Section: B.

Thesis (Ph.D.)--Carnegie Mellon University, 2022.

Block polymers dispersed into a solvent that prefers one block strongly over the other blocks can spontaneously arrange into nanoscale structures, such as spherical or cylindrical micelles. These nanoscale structures can pack into three dimensional crystalline grains. The final properties of a material with crystalline nanostructure are dependent on many factors including the thermal and shear history of the sample. Any additional components to the system may change the nanoscale structure which will consequently change the final mechanical properties. In this work a practical understanding of block polymer phases is established, along with useful processing techniques. Widely accessible rheological techniques are used to demonstrate a unique fingerprint between FCC and BCC crystalline phases. We then demonstrate the importance of shear processing by using large amplitude oscillatory shear to accelerate a crystalline order transition to occur within minutes rather than months. The mobility of proteins through the aqueous channels in block polymer crystals is quantified with a semi-autonomous Fluorescence Recovery After Photobleaching microscope built for this work. The outcome of this work is a set of guiding principles to allow for systematic design of a material with a crystalline block polymer structure.

ISBN: 9798209995623Subjects--Topical Terms:

3173488
Polymer chemistry.
Subjects--Index Terms:

Crsytallography

Self-Assembled Structures with Crystalline Order in Aqueous Block Polymer Systems.
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245 1 0 $a Self-Assembled Structures with Crystalline Order in Aqueous Block Polymer Systems.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 201 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-10, Section: B.
500 $a Advisor: Walker, Lynn.
502 $a Thesis (Ph.D.)--Carnegie Mellon University, 2022.
520 $a Block polymers dispersed into a solvent that prefers one block strongly over the other blocks can spontaneously arrange into nanoscale structures, such as spherical or cylindrical micelles. These nanoscale structures can pack into three dimensional crystalline grains. The final properties of a material with crystalline nanostructure are dependent on many factors including the thermal and shear history of the sample. Any additional components to the system may change the nanoscale structure which will consequently change the final mechanical properties. In this work a practical understanding of block polymer phases is established, along with useful processing techniques. Widely accessible rheological techniques are used to demonstrate a unique fingerprint between FCC and BCC crystalline phases. We then demonstrate the importance of shear processing by using large amplitude oscillatory shear to accelerate a crystalline order transition to occur within minutes rather than months. The mobility of proteins through the aqueous channels in block polymer crystals is quantified with a semi-autonomous Fluorescence Recovery After Photobleaching microscope built for this work. The outcome of this work is a set of guiding principles to allow for systematic design of a material with a crystalline block polymer structure.
590 $a School code: 0041.
650 4 $a Polymer chemistry. $3 3173488
650 4 $a Materials science. $3 543314
650 4 $a Chemical engineering. $3 560457
653 $a Crsytallography
653 $a Liquid crystal
653 $a Rheology
653 $a SAXS
653 $a Self-assembly
690 $a 0794
690 $a 0495
690 $a 0542
710 2 $a Carnegie Mellon University. $b Chemical Engineering. $3 3174217
773 0 $t Dissertations Abstracts International $g 83-10B.
790 $a 0041
791 $a Ph.D.
792 $a 2022
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29064563