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The phase structure and phase behavi...

Chen, Zheng.

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The phase structure and phase behavior of polymer blends undergoing simple shear flow.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The phase structure and phase behavior of polymer blends undergoing simple shear flow./
Author:	Chen, Zheng.
Description:	146 p.
Notes:	Source: Dissertation Abstracts International, Volume: 57-03, Section: B, page: 1830.
Contained By:	Dissertation Abstracts International57-03B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9622204

The phase structure and phase behavior of polymer blends undergoing simple shear flow.
Chen, Zheng.

The phase structure and phase behavior of polymer blends undergoing simple shear flow. - 146 p.

Source: Dissertation Abstracts International, Volume: 57-03, Section: B, page: 1830.

Thesis (Ph.D.)--The University of Connecticut, 1995.

The effect of simple shear flow on the phase structure and phase behavior of polymer blends was studied using a custom-built rheo-optical instrument which consisted of a commercial rheometer and a two-dimensional light scattering device. The scattered light intensity was detected using a high resolution two-dimensional charge coupled device (CCD) detector. This instrument allowed simultaneous rheological and light scattering studies to be performed.Subjects--Topical Terms:

1018428
Chemistry, Polymer.

The phase structure and phase behavior of polymer blends undergoing simple shear flow.
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008 130614s1995 eng d
035 $a (UnM)AAI9622204
035 $a AAI9622204
040 $a UnM $c UnM
100 1 $a Chen, Zheng. $3 1043835
245 1 0 $a The phase structure and phase behavior of polymer blends undergoing simple shear flow.
300 $a 146 p.
500 $a Source: Dissertation Abstracts International, Volume: 57-03, Section: B, page: 1830.
502 $a Thesis (Ph.D.)--The University of Connecticut, 1995.
520 $a The effect of simple shear flow on the phase structure and phase behavior of polymer blends was studied using a custom-built rheo-optical instrument which consisted of a commercial rheometer and a two-dimensional light scattering device. The scattered light intensity was detected using a high resolution two-dimensional charge coupled device (CCD) detector. This instrument allowed simultaneous rheological and light scattering studies to be performed.
520 $a When simple shear flow was applied to a phase-separated polymer blend, a bright-streak scattering pattern was observed as for many other polymer mixtures reported in the literature. Further studies showed that the bright streak pattern developed from H-shaped and dark-streak patterns. Comparison of light scattering patterns with micrographs of a sheared sample revealed that all scattering patterns were parts of a distorted spinodal ring scattering pattern.
520 $a The rheo-optical experiments showed that the spinodal-type bicontinuous structure was stretched in the flow direction, and a spinodal ring in the light scattering pattern was correspondingly shrunk in the flow direction. The characteristic dimensions of the phase structure of a flowing polymer blend were calculated from the distorted spinodal scattering ring.
520 $a The phase separation kinetics of a flowing polymer blend was also studied. Anisotropic phase separation was observed. H-shaped and dark-streak scattering patterns developed during the phase separation process. The domain growth was studied from the development of scattering patterns.
520 $a Two polymer blend systems were studied in this research: polystyrene/poly-(vinyl methyl ether) and polybutadiene/polyisoprene.
590 $a School code: 0056.
650 4 $a Chemistry, Polymer. $3 1018428
650 4 $a Engineering, Chemical. $3 1018531
650 4 $a Plastics Technology. $3 1023683
690 $a 0495
690 $a 0542
690 $a 0795
710 2 0 $a The University of Connecticut. $3 1249323
773 0 $t Dissertation Abstracts International $g 57-03B.
790 $a 0056
791 $a Ph.D.
792 $a 1995
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9622204