Macromolecular architecture effects on block copolymer dynamics. II. A2B simple grafts

K. Chrissopoulou; S. Harville; S. H. Anastasiadis; G. Fytas; J. W. Mays; Nikolaos Hadjichristidis

doi:10.1002/(SICI)1099-0488(19991215)37:24<3385::AID-POLB1>3.0.CO;2-D

Macromolecular architecture effects on block copolymer dynamics. II. A₂B simple grafts

K. Chrissopoulou^*, S. Harville, S. H. Anastasiadis, G. Fytas, J. W. Mays, Nikolaos Hadjichristidis

^*Corresponding author for this work

Physical Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Photon correlation spectroscopy has been used to investigate the dynamics of composition fluctuations in disordered semidilute solutions of (polyisoprene)₂(polystyrene) (I₂S) graft copolymers in toluene. Four different relaxation mechanisms were identified with different concentration and wavevector dependencies: Three are the well-known processes in diblock copolymer solutions (cooperative diffusion, internal mode, and polydispersity diffusive mode), whereas the fourth is an extra process between the internal and the polydispersity modes that appears near the disorder-to-order transition. The latter displays similar characteristics to a process recently observed for inverse starblock copolymers also in the ordering region, and should be related to the macromolecular architecture.

Original language	English (US)
Pages (from-to)	3385-3391
Number of pages	7
Journal	Journal of Polymer Science, Part B: Polymer Physics
Volume	37
Issue number	24
DOIs	https://doi.org/10.1002/(SICI)1099-0488(19991215)37:24<3385::AID-POLB1>3.0.CO;2-D
State	Published - Dec 15 1999

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Polymers and Plastics
Materials Chemistry

Access to Document

10.1002/(SICI)1099-0488(19991215)37:24<3385::AID-POLB1>3.0.CO;2-D

Cite this

@article{8fcba814a6be46b5a47a116b642474a6,

title = "Macromolecular architecture effects on block copolymer dynamics. II. A2B simple grafts",

abstract = "Photon correlation spectroscopy has been used to investigate the dynamics of composition fluctuations in disordered semidilute solutions of (polyisoprene)2(polystyrene) (I2S) graft copolymers in toluene. Four different relaxation mechanisms were identified with different concentration and wavevector dependencies: Three are the well-known processes in diblock copolymer solutions (cooperative diffusion, internal mode, and polydispersity diffusive mode), whereas the fourth is an extra process between the internal and the polydispersity modes that appears near the disorder-to-order transition. The latter displays similar characteristics to a process recently observed for inverse starblock copolymers also in the ordering region, and should be related to the macromolecular architecture.",

author = "K. Chrissopoulou and S. Harville and Anastasiadis, {S. H.} and G. Fytas and Mays, {J. W.} and Nikolaos Hadjichristidis",

year = "1999",

month = dec,

day = "15",

doi = "10.1002/(SICI)1099-0488(19991215)37:24<3385::AID-POLB1>3.0.CO;2-D",

language = "English (US)",

volume = "37",

pages = "3385--3391",

journal = "Journal of Polymer Science, Part B: Polymer Physics",

issn = "0887-6266",

publisher = "Wiley",

number = "24",

}

TY - JOUR

T1 - Macromolecular architecture effects on block copolymer dynamics. II. A2B simple grafts

AU - Chrissopoulou, K.

AU - Harville, S.

AU - Anastasiadis, S. H.

AU - Fytas, G.

AU - Mays, J. W.

AU - Hadjichristidis, Nikolaos

PY - 1999/12/15

Y1 - 1999/12/15

N2 - Photon correlation spectroscopy has been used to investigate the dynamics of composition fluctuations in disordered semidilute solutions of (polyisoprene)2(polystyrene) (I2S) graft copolymers in toluene. Four different relaxation mechanisms were identified with different concentration and wavevector dependencies: Three are the well-known processes in diblock copolymer solutions (cooperative diffusion, internal mode, and polydispersity diffusive mode), whereas the fourth is an extra process between the internal and the polydispersity modes that appears near the disorder-to-order transition. The latter displays similar characteristics to a process recently observed for inverse starblock copolymers also in the ordering region, and should be related to the macromolecular architecture.

AB - Photon correlation spectroscopy has been used to investigate the dynamics of composition fluctuations in disordered semidilute solutions of (polyisoprene)2(polystyrene) (I2S) graft copolymers in toluene. Four different relaxation mechanisms were identified with different concentration and wavevector dependencies: Three are the well-known processes in diblock copolymer solutions (cooperative diffusion, internal mode, and polydispersity diffusive mode), whereas the fourth is an extra process between the internal and the polydispersity modes that appears near the disorder-to-order transition. The latter displays similar characteristics to a process recently observed for inverse starblock copolymers also in the ordering region, and should be related to the macromolecular architecture.

UR - http://www.scopus.com/inward/record.url?scp=0033279699&partnerID=8YFLogxK

U2 - 10.1002/(SICI)1099-0488(19991215)37:24<3385::AID-POLB1>3.0.CO;2-D

DO - 10.1002/(SICI)1099-0488(19991215)37:24<3385::AID-POLB1>3.0.CO;2-D

M3 - Article

AN - SCOPUS:0033279699

SN - 0887-6266

VL - 37

SP - 3385

EP - 3391

JO - Journal of Polymer Science, Part B: Polymer Physics

JF - Journal of Polymer Science, Part B: Polymer Physics

IS - 24

ER -

Macromolecular architecture effects on block copolymer dynamics. II. A₂B simple grafts

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this