Actions for Synthesis of aromatic secondary diamines

Email RIS file
Bookmark
Report an Issue

Synthesis of aromatic secondary diamines

Author
Greenwood, T. D.
Published
JAN 1, 1979.
Physical Description
1 electronic document
Additional Creators
Wolfe, J. F. and Kahley, R. A.
Online Version

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
A series of N-methyl substituted aromatic polyamides derived from the secondary aromatic diamines, 4,4'-bis(methylamino)diphenylmethane, 3,3'-bis(methylamino) diphenylmethane, 4,4'-bis(methylamino)benzophenone or 3,3'-bis(methylamino)benzophenone and isophthaloyl dichloride, terphthaloyl dichloride or 3,3'diphenylmethane dicarboxylic acid dichloride was prepared by high temperature solution polymerization in s-tetrachloroethane. Compared to analogous unsubstituted and partially N-methylated aromatic polyamides, the full N-methylated polyamides exhibited significantly lower glass transition temperatures, reduced crystallinity, improved thermal stability and good solubility in chlorinated solvents.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19790006984.
Accession ID: 79N15155.
NASA-CR-157963.
Southeastern Regional Meeting of the Am. Chem. Soc.; Oct. 1976; Gatlinburg, TN; United States.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15726810