| Autor: |
Furusho, Yoshio, Endo, Takeshi, Higaki, Keiko, Kaetsu, Katsuhiro, Higaki, Yuji, Kojio, Ken, Takahara, Atsushi |
| Předmět: |
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| Zdroj: |
Journal of Polymer Science. Part A, Polymer Chemistry; Jul2016, Vol. 54 Issue 14, p2148-2155, 9p |
| Abstrakt: |
ABSTRACT We have prepared the amidinium-carboxylate salt bridge-based supramolecular network polymers from a carboxy-terminated telechelic poly( n-butyl acrylate) and a linear polyamidine having N, N′-di-substituted acetamidine group in the main chain. FTIR measurements indicated that the salt bridge was attributed to the three-dimensional network formation. Virtually, no fluidity was observed for the blend containing equimolar amounts of the carboxyl group and the amidine group, which showed a high G′ value of about 1 MPa at −5 °C. For comparison, the supramolecular network polymers crosslinked by ammonium-carboxylate salt were prepared using a linear polyethyleneimine instead of the polyamidine. The blend with equimolar amounts of the carboxyl group and the secondary amino group showed liquid-like fluidity with a G′ value of about 0.01 MPa at −5 °C, which was attributed to the fact that a certain amount of the carboxyl group remained as its free form, as evidenced by FTIR analysis. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2016, 54, 2148-2155 [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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