| Autor: |
Smith, J. G., Jr., Sun, F., Ottenbrite, R. M. |
| Zdroj: |
Macromolecules; February 12, 1996, Vol. 29 Issue: 4 p1123-1130, 8p |
| Abstrakt: |
Bis(amide-1,3-diene) monomers were prepared from 1,4-[N,N- bis(butadienyl-2-methyl)diamino]-2,3,5,6-tetramethylbenzene and several alkyl and aryl acid chlorides. The corresponding poly(amide imide)s were prepared by the Diels−Alder reaction involving these bis(amide-1,3-diene)s with bismaleimides. The polymers exhibited inherent viscosities of 0.21−0.81 dL/g and glass transition temperatures ranging from 202 to 269 °C. Moderate thermal stability was observed by dynamic thermogravimetric analysis, with 10% weight loss occurring between 318 and 350 °C in helium. The polymers were soluble in N,N-dimethylacetamide and chlorinated solvents. Creasable films were obtained by solution casting from chloroform. The chemistry and physical properties of the monomers and polymers are discussed. |
| Databáze: |
Supplemental Index |
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