Abstract
The concept of polyflexibility is based on the remarkable contrast observed between a chemically ordered polymer containing rigid, semi-rigid and flexible units and its isomeric system of disordered chains. The ordered constitutional isomer synthesized was found to undergo its nematic to isotropic phase transition sharply over a temperature range which was 25 to 40 times narrower than that of the disordered isomer. Naturally one may expect a reduction in polyflexibility as the average chain length increases in the system. Nonetheless, a computer simulation applicable to the author's experimental polymers shows that unrealistic degrees of polymerization for condensation reactions would be required to reduce significantly the biphasic range. These results are presented. The author presents a liquid fringed micelle model.
| Original language | English |
|---|---|
| Title of host publication | American Chemical Society, Polymer Preprints, Division of Polymer Chemistry |
| Publisher | Publ by ACS |
| Pages | 509-510 |
| Number of pages | 2 |
| Volume | 30 |
| Edition | 2 |
| Publication status | Published - Sep 1989 |
| Event | Papers Presented at the Miami Beach, FL Meeting: Polymer Preprints - Miami Beach, FL, USA Duration: Sep 10 1989 → Sep 15 1989 |
Other
| Other | Papers Presented at the Miami Beach, FL Meeting: Polymer Preprints |
|---|---|
| City | Miami Beach, FL, USA |
| Period | 9/10/89 → 9/15/89 |
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ASJC Scopus subject areas
- Polymers and Plastics
Cite this
Molecular organization in nematic polymers. / Stupp, Samuel I.
American Chemical Society, Polymer Preprints, Division of Polymer Chemistry. Vol. 30 2. ed. Publ by ACS, 1989. p. 509-510.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Molecular organization in nematic polymers
AU - Stupp, Samuel I
PY - 1989/9
Y1 - 1989/9
N2 - The concept of polyflexibility is based on the remarkable contrast observed between a chemically ordered polymer containing rigid, semi-rigid and flexible units and its isomeric system of disordered chains. The ordered constitutional isomer synthesized was found to undergo its nematic to isotropic phase transition sharply over a temperature range which was 25 to 40 times narrower than that of the disordered isomer. Naturally one may expect a reduction in polyflexibility as the average chain length increases in the system. Nonetheless, a computer simulation applicable to the author's experimental polymers shows that unrealistic degrees of polymerization for condensation reactions would be required to reduce significantly the biphasic range. These results are presented. The author presents a liquid fringed micelle model.
AB - The concept of polyflexibility is based on the remarkable contrast observed between a chemically ordered polymer containing rigid, semi-rigid and flexible units and its isomeric system of disordered chains. The ordered constitutional isomer synthesized was found to undergo its nematic to isotropic phase transition sharply over a temperature range which was 25 to 40 times narrower than that of the disordered isomer. Naturally one may expect a reduction in polyflexibility as the average chain length increases in the system. Nonetheless, a computer simulation applicable to the author's experimental polymers shows that unrealistic degrees of polymerization for condensation reactions would be required to reduce significantly the biphasic range. These results are presented. The author presents a liquid fringed micelle model.
UR - http://www.scopus.com/inward/record.url?scp=0024739060&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024739060&partnerID=8YFLogxK
M3 - Conference contribution
VL - 30
SP - 509
EP - 510
BT - American Chemical Society, Polymer Preprints, Division of Polymer Chemistry
PB - Publ by ACS
ER -