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Compatibilizing polymer blends using...

O'Brien, Charles Paul.

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Compatibilizing polymer blends using reactive telechelic oligomers and copolymers.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Compatibilizing polymer blends using reactive telechelic oligomers and copolymers./
Author:	O'Brien, Charles Paul.
Description:	147 p.
Notes:	Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1888.
Contained By:	Dissertation Abstracts International65-04B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3130172
ISBN:	0496774255

Compatibilizing polymer blends using reactive telechelic oligomers and copolymers.
O'Brien, Charles Paul.

Compatibilizing polymer blends using reactive telechelic oligomers and copolymers. - 147 p.

Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1888.

Thesis (Ph.D.)--The University of Tennessee, 2004.

The compatibilization of polymer blends via reactive compatibilization and block copolymers was studied. The results presented in this thesis suggest that the process of reactive compatibilization provides a mechanism by which blocky copolymeric compatibilizers can be formed during processing, as demonstrated by the changes in the mechanical and optical properties of the phase separated polymer blends. The results also show, however, that the presence of unreacted smaller oligomers can act as a plasticizer in the blend and can thus detrimentally affect the mechanical properties of the blend if any remains after processing. Careful control of the mixing conditions or post processing thermal annealing is required to minimize this potentially deleterious effect. However, the data presented here suggest that this optimization is possible. In addition, the compatibilization of polymer blends with blocky, random, and alternating copolymer was studied. Depth profiling of polymer samples containing copolymers as compatibilizers was achieved with FRES (forward recoil spectroscopy) and neutron reflectivity and the results were compared with fracture toughness data that was previously reported. The results show that molecular weight of the alternating copolymer as well as the molecular weight of block segments in block copolymers are important parameters for copolymers to act as compatibilizers.

ISBN: 0496774255Subjects--Topical Terms:

1018428
Chemistry, Polymer.

Compatibilizing polymer blends using reactive telechelic oligomers and copolymers.
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245 1 0 $a Compatibilizing polymer blends using reactive telechelic oligomers and copolymers.
300 $a 147 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-04, Section: B, page: 1888.
500 $a Major Professor: Mark Dadmun.
502 $a Thesis (Ph.D.)--The University of Tennessee, 2004.
520 $a The compatibilization of polymer blends via reactive compatibilization and block copolymers was studied. The results presented in this thesis suggest that the process of reactive compatibilization provides a mechanism by which blocky copolymeric compatibilizers can be formed during processing, as demonstrated by the changes in the mechanical and optical properties of the phase separated polymer blends. The results also show, however, that the presence of unreacted smaller oligomers can act as a plasticizer in the blend and can thus detrimentally affect the mechanical properties of the blend if any remains after processing. Careful control of the mixing conditions or post processing thermal annealing is required to minimize this potentially deleterious effect. However, the data presented here suggest that this optimization is possible. In addition, the compatibilization of polymer blends with blocky, random, and alternating copolymer was studied. Depth profiling of polymer samples containing copolymers as compatibilizers was achieved with FRES (forward recoil spectroscopy) and neutron reflectivity and the results were compared with fracture toughness data that was previously reported. The results show that molecular weight of the alternating copolymer as well as the molecular weight of block segments in block copolymers are important parameters for copolymers to act as compatibilizers.
590 $a School code: 0226.
650 4 $a Chemistry, Polymer. $3 1018428
690 $a 0495
710 2 0 $a The University of Tennessee. $3 1022026
773 0 $t Dissertation Abstracts International $g 65-04B.
790 1 0 $a Dadmun, Mark, $e advisor
790 $a 0226
791 $a Ph.D.
792 $a 2004
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3130172