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Block copolymers in condensed carbon...

Edmonds, William Frank.

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Block copolymers in condensed carbon dioxide.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Block copolymers in condensed carbon dioxide./
作者:	Edmonds, William Frank.
面頁冊數:	213 p.
附註:	Advisers: Timothy P. Lodge; Marc A. Hillmyer.
Contained By:	Dissertation Abstracts International68-06B.
標題:	Chemistry, Polymer. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3268982
ISBN:	9780549089377

Block copolymers in condensed carbon dioxide.
Edmonds, William Frank.

Block copolymers in condensed carbon dioxide. - 213 p.

Advisers: Timothy P. Lodge; Marc A. Hillmyer.

Thesis (Ph.D.)--University of Minnesota, 2007.

Finally, CO2 was used a selective solvent to form nanoporous materials from a polystyrene-b-polylactide cylinder-forming template. By varying the density, the pore size for a particular copolymer could be tuned from 15 to 30 nm.

ISBN: 9780549089377Subjects--Topical Terms:

1018428
Chemistry, Polymer.

Block copolymers in condensed carbon dioxide.
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100 1 $a Edmonds, William Frank. $3 1280715
245 1 0 $a Block copolymers in condensed carbon dioxide.
300 $a 213 p.
500 $a Advisers: Timothy P. Lodge; Marc A. Hillmyer.
500 $a Source: Dissertation Abstracts International, Volume: 68-06, Section: B, page: 3812.
502 $a Thesis (Ph.D.)--University of Minnesota, 2007.
520 $a Finally, CO2 was used a selective solvent to form nanoporous materials from a polystyrene-b-polylactide cylinder-forming template. By varying the density, the pore size for a particular copolymer could be tuned from 15 to 30 nm.
520 $a This thesis reports the synthesis and characterization of novel amphiphilic copolymers for use in condensed CO2. A series of nonionic, macromolecular surfactants were synthesized by coupling various hydrocarbon polymers to a CO2-philic fluoropolymer. The bulk phase behavior of these hybrid copolymers was characterized; a system of polybutadiene-b-poly(perfluoropropylene oxide) (PBD-b-PFPO) exhibited an unusually large Flory-Huggins interaction parameter in the melt. In dilute solution, the interfacial tension of this system in a PBD selective solvent flirted with the superstrong segregation limit and disk micelles were observed.
520 $a The solubility of these hybrid copolymers in CO2 was characterized using a home-built variable volume view cell. In general, the copolymers were readily soluble in solution at pressures less than 500 bar. The self-assembly of these amphiphiles in CO2 was characterized using a combination of high-pressure dynamic light scattering and transmission electron microscopy. Copolymers of polystyrene-b-PFPO were found to form disk micelles, while copolymers of polylactide-b-PFPO were found to form vesicles in CO2 at 400 bar.
590 $a School code: 0130.
650 4 $a Chemistry, Polymer. $3 1018428
690 $a 0495
710 2 $a University of Minnesota. $3 676231
773 0 $t Dissertation Abstracts International $g 68-06B.
790 $a 0130
790 1 0 $a Hillmyer, Marc A., $e advisor
790 1 0 $a Lodge, Timothy P., $e advisor
791 $a Ph.D.
792 $a 2007
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