The influence of conformational parameters on some physical properties of polyimides containing naphthalene units. (August 2015)

• Record Type: Journal Article
• Authors: Sava, Ion; Bruma, Maria; Ronova, Inga A.
• Other Names: Bruma Maria guest-editor.
• Is Part Of: High performance polymers. Volume 27:Number 5(2015:Aug.)
• Page Start: 583
• Page End: 589
• Publication Date: 2015-08
• Subjects: Conformational parameters -- naphthalene -- polyimides; Polymerization -- Periodicals; Polymers -- Periodicals; 547.7
• DOI: 10.1177/0954008315584180
• Languages: English
• ISSNs: 0954-0083

Abstract

Conformational parameters of some aromatic polyimides–containing naphthalene units have been calculated by Monte Carlo method taking into consideration the hindered rotation produced by voluminous naphthalene units. Several physical properties such as solubility, glass transition temperature ( T g ), and initial decomposition temperature ( T d ) have been studied with regard to the rigidity of the chain of these polyimides. It has been shown that T g is well correlated with chain rigidity and with free volume ( V fr ) of the polymers, while the T d is not influenced by conformational parameters.