OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 24 — Aug. 20, 2001
  • pp: 4170–4178

Dynamic light-scattering study of self-assembly of diblock copolymers in supercritical carbon dioxide

Tadanori Koga, Shuiqin Zhou, and Benjamin Chu  »View Author Affiliations


Applied Optics, Vol. 40, Issue 24, pp. 4170-4178 (2001)
http://dx.doi.org/10.1364/AO.40.004170


View Full Text Article

Enhanced HTML    Acrobat PDF (185 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

A high-pressure dynamic light-scattering (DLS) technique has been utilized to study the behavior in solution of poly(1,1-dihydroperfluorooctylacrylate) and poly(vinyl acetate) (PFOA-b-PVAC) in supercritical carbon dioxide. The hydrodynamic-radius distribution for each species, such as unimers, micelles, and large aggregates, were determined under both isobaric and isothermal conditions over a pressure range of 9–55.2 MPa, and a temperature range of 25–75 °C, respectively. The DLS results clearly showed both pressure-induced and temperature-induced dissolution and association behavior for the copolymer in supercritical carbon dioxide. Also presented are some preliminary experimental results for the micellar self-assembly of a fluorinated block copolymer, poly(2-tetrahydropyranyl methacrylate)-b-poly(1h,1h-perfluorooctyl methacrylate) (THPMA-b-F7MA), in supercritical carbon dioxide by use of a new high-pressure cell that allows us to conduct simultaneous small-angle x-ray scattering and DLS measurements.

© 2001 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(300.6360) Spectroscopy : Spectroscopy, laser

History
Original Manuscript: January 8, 2001
Revised Manuscript: April 30, 2001
Published: August 20, 2001

Citation
Tadanori Koga, Shuiqin Zhou, and Benjamin Chu, "Dynamic light-scattering study of self-assembly of diblock copolymers in supercritical carbon dioxide," Appl. Opt. 40, 4170-4178 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-24-4170

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited