Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Intramacromolecular complex

The intramacromolecular complexation of the block copolymer of poly(sty-renesulfonic acid) (PSS)-poly(2-vinylpyridine) (P2VP) has recently been reported. Varoqui et al.435) have synthesized this block copolymer and investigated its solution properties. They observed a great increase in the basicity of the pyridyl groups in the block copolymer. This phenomenon was explained by invoking a stoichiometric interaction between oppositely charged blocks. [Pg.36]

Section 4 is devoted to some aspects of the experimental investigation of polymers in solution by PL. The results of the studies on the intramolecular mobility (IMM) of various parts of the polymer chain and its relationship to the chemical structure of macromolecules and the effect of hydrogen bonds and hydrophobic interactions on the IMM are discussed. Special attention is devoted to the relationship between the IMM of polymers and the intramacromolecular structurization caused by various factors (various specific intramolecular interactions or the presence of surface-active substances and ions of rare earth elements). This section also deals with the results of the investigation by the PL method of such complex and multi-component polymer systems as block copolymers, aoss-linked polymer systems and intermacromolecular complexes. [Pg.4]

High sensitivity of the IMM of the polymer to changes in intramacromolecular interactions of various types (specific or Van der Waals interactions, etc.) permits to make use of the relaxation properties of the polymer for studying intermacromolecular interactions in polymer-polymer complexes (PC). A comparative investigation of the IMM of macromolecules constituting PC and single macromolecules of each of its components has been carried out for a number of PC 3i-i33) nKthod... [Pg.49]


See other pages where Intramacromolecular complex is mentioned: [Pg.155]    [Pg.174]    [Pg.155]    [Pg.174]   
See also in sourсe #XX -- [ Pg.36 ]




SEARCH



© 2024 chempedia.info