| ID | 115214 |
| Author |
Hirano, Tomohiro
The University of Tokushima
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Yamamoto, Hiroaki
The University of Tokushima
Ute, Koichi
The University of Tokushima
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|
| Keywords | Syndiotactic N-alkylacrylamide copolymers
Chemical composition
Phase-transition behavior
|
| Content Type |
Journal Article
|
| Description | Radical copolymerizations of N-isopropylacrylamide (NIPAAm) and N-n-propylacrylamide (NNPAAm) in various ratios were carried out in toluene at –40 °C in the presence of 3-methyl-3-pentanol to prepare syndiotactic copolymers with racemo dyad contents of ca. 70%. It was revealed that copolymers containing more than 92.5 mol% NNPAAm units exhibited large phase-transition hysteresis of their aqueous solutions. Sequence analysis suggested that intramolecular hydrogen-bonding of contiguous NNPAAm units in syndiotactic stereosequences in the dehydrated state were responsible for induction of the large hysteresis.
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| Journal Title |
Polymer
|
| ISSN | 00323861
|
| NCID | AA11537383
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| Publisher | Elsevier
|
| Volume | 52
|
| Issue | 23
|
| Start Page | 5277
|
| End Page | 5281
|
| Published Date | 2011-10-01
|
| Rights | © 2011. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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| EDB ID | |
| DOI (Published Version) | |
| URL ( Publisher's Version ) | |
| FullText File | |
| language |
eng
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| TextVersion |
Author
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| departments |
Science and Technology
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