Pressure jump kinetics of disorder to BCC ordering in diblock copolymer micelles in a selective solvent

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F12%3A00386133" target="_blank" >RIV/61389013:_____/12:00386133 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/ma301462d" target="_blank" >http://dx.doi.org/10.1021/ma301462d</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/ma301462d" target="_blank" >10.1021/ma301462d</a>

Result language

angličtina

Original language name

Pressure jump kinetics of disorder to BCC ordering in diblock copolymer micelles in a selective solvent

Original language description

We present time-resolved small-angle X-ray scattering (SAXS) measurements of the kinetics of a barotropic disorder-order transition in polystyrene-polyisoprene (SI) diblock micelles in diethyl phthalate (DEP), a styrene selective solvent. Because of thefast equilibration in a pressure jump we were able to observe the initial induction stage during which the short-range order of the micellar fluid increases, followed by a sharp first-order nucleation and growth of the BCC phase and eventual late stage coarsening. The time evolution of intensity from individual diffraction spots of a crystallite was obtained from the analysis of 2-dimensional SAXS patterns and shows late stage power-law growth. The time evolution of the SAXS intensity profiles was analyzed by fitting the contribution to the scattering from the ordered Bragg peaks by Gaussians and analyzing the contribution to the scattering from the disordered micellar liquid in terms of the Percus-Yevick interacting hard sphere model T

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CD - Macromolecular chemistry

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Macromolecules

ISSN

0024-9297

e-ISSN

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Volume of the periodical

45

Issue of the periodical within the volume

22

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

9147-9154

UT code for WoS article

000311522100025

EID of the result in the Scopus database

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