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Molecular weight distribution and conformational analysis of randomly branched poly(phenylene quinoxalines) of low branching degree

 

作者: V. V. Koršak,   S. ‐S. A. Pavlova,   G. I. Timofeeva,   S. A. Krojan,   E. S. Krongauz,   A. P. Travnikova,   H. Raubach,   G. Schulz,   R. Gnauck,  

 

期刊: Acta Polymerica  （WILEY Available online 1985）
卷期: Volume 36, issue 1  

页码: 22-29

 

ISSN:0323-7648

 

年代: 1985

 

DOI:10.1002/actp.1985.010360105

 

出版商: Akademie Verlag GmbH

 

数据来源: WILEY

 

摘要:

AbstractBy comparative investigations of solutions of randomly branched poly(phenylene quinoxalines) (PPQ) with low degree of branching and solutions of linear PPQ the hydrodynamic properties and polydispersity coefficient are shown to be sensitively affected by branching. The conformation of branched PPQ macromolecules in solution was found to deviate from Gaussian type. Additionally, differences between experimental and theoretical MWD were detected. Possible explanations of the observed desagreement are discussed.

 

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