METASTABLE STATES BELOW THE ORDER-DISORDER TRANSITION IN A SYMMETRICAL DIBLOCK COPOLYMER - A TIME-RESOLVED DEPOLARIZED LIGHT-SCATTERING STUDY

Authors
FLOUDAS G FYTAS G HADJICHRISTIDIS N PITSIKALIS M
Citation
G. Floudas et al., METASTABLE STATES BELOW THE ORDER-DISORDER TRANSITION IN A SYMMETRICAL DIBLOCK COPOLYMER - A TIME-RESOLVED DEPOLARIZED LIGHT-SCATTERING STUDY, Macromolecules, 28(7), 1995, pp. 2359-2362
Citations number
22
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecules → ACNP
ISSN journal
00249297
Volume
28
Issue
7
Year of publication
1995
Pages
2359 - 2362
Database
ISI
SICI code
0024-9297(1995)28:7<2359:MSBTOT>2.0.ZU;2-D
Abstract
Depolarized light scattering has been used to study the ordering kinet ics in a symmetric poly(styrene-b-isoprene) copolymer melt. The depola rized intensity variation with time following a quench from the disord ered phase provides an estimate of the grain size which is consistent with the result from the SAXS experiment. The mechanism of grain relax ation is discussed in terms of rotational motions in the mobile enviro nment. The dissolution of the initially ordered structure is much fast er (t < 10(2) s) than the ordering process.