ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary A simple model is proposed to describe the miscibility of blends, which contain homo- and/or copolymers with tactic subunits. The directional-specific intermolecular interactions are assumed to be mediated by interactions caused by repulsive type intramolecular tacticity as well as chemical intersteps. Syndiotactic homopolymers are chosen as the reference state, for tactic as well as for mixed triads. The approximations developed in this paper include triad as well as diad treatment with respect to tacticity. Chemical intersteps are taken into account on a diad basis. Additive overlapping of tactic and chemical effects is assumed for mixed hetero- and isotactic triads. Complex copolymer blends, including multi-component copolymers, are treatable in this way. The modification of tactic and chemical sequences in polymer blends with the aim of developing compatible, as well as phase separated, systems may be facilitated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00281765
