Citation:

Nunez*, C M., K. Whitfield*, D. J. Mercurio, J. R. Ilzhoefer, R. J. Spontak, AND S. A. Khan. EFFECT OF MOLECULAR ARCHITECTURE ON DBS-INDUCED BLOCK COPOLYMER GELS: A RHEOLOGICAL STUDY. MACROMOLECULAR SYMPOSIA 106:275-286, (1996).

Description:

Dibenzylidene sorbitol (DBS) is capable of gelling a variety of organic solvents and polymeric materials by forming a rigid, 3-D hydrogen-bonded network. In this work, two poly(siloxane)/poly(propylene oxide) segmented copolymers of equal composition and molecular weight, but different architectures (endblocked vs. pendant), as well as a pure poly(propylene oxide), have been gelled with DBS. We have investigated the dynamic rheological properties of these gels to ascertain the effect of copolymer architecture, PDMS commoner and DBS concentration on network formation.

Record Details:

Record Type:DOCUMENT( JOURNAL/ PEER REVIEWED JOURNAL)

Product Published Date:06/01/1996

Record Last Revised:12/22/2005

Record ID: 64360

Show Additional Record Data

Access Procedures :Macromolecular Symposia

Related Organizations:

Role :OWNER

Organization Name :US ENVIRONMENTAL PROTECTION AGENCY

Organization Name :OFFICE OF RESEARCH AND DEVELOPMENT

Organization Name :NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

Organization Name :AIR POLLUTION PREVENTION AND CONTROL DIVISION

Document IDs:

EPA Number :EPA/600/J-99/286