Supramolecular organic polymeric materials

In some of these type of polymeric materials there are two forces that organize the polymer strands into a supramolecular structure, and are usually hydrogen bonds and 7r-7r interactions, this happens with the complex [l,2,4,5-C6H2 CH20CH2C(pz)3 4Ag2(BF4)2] .605... 

The chemistry of metal complexes featuring alkyne and alkynyl (acetylide) ligands has been an area of immense interest for decades. Even the simplest examples of these, the mononuclear metal acetylide complexes L MC=CR, are now so numerous and the extent of their reaction chemistry is so diverse as to defy efforts at a comprehensive review. " The utility of these complexes is well documented. Some metal alkynyl complexes have been used as intermediates in preparative organic chemistry and together with derived polymeric materials, many have useful physical properties including liquid crystallinity and nonlinear optical behaviour. The structural properties of the M—C=C moiety have been used in the construction of remarkable supramolecular architectures based upon squares, boxes, and other geometries. ... 

Summary The analysis of supramolecular structures containing polymers, and the discussion about the effect of polymeric materials with different chemical structures that form inclusion complexes is extensively studied. The effect of the inclusion complexes at the air-water interface is discussed in terms on the nature of the interaction. The entropic or enthalpic nature of the interaction is analyzed. The description of these inclusion complexes with different cyclodextrines with several polymers is an interesting way to understand some non-covalent interaction in these systems. The discussion about the generation and effect of supramolecular structures on molecular assembly and auto-organization processes is also presented in a single form. The use of block copolymers and dendronized polymers at interfaces is a new aspect to be taken into account from both basic and technological interest. The effect of the chemical structure on the self-assembled systems is discussed. 

Another major area of CSD-based research is the supramolecular stmctural organization and crystal engineering, and particularly the role of hydrogen bonding in the solid state. Although fhe initial incentive came from biomolecular chemistry, fhe results are equally important for inorganic, organometallic, and polymeric materials. 

Orientation also affects the properties of polymeric systems manifesting supramolecular organization, such as composites containing anisotropic fillers within a polymeric matrix and semicrystalline polymers. These effects will be discussed further in Chapter 20, in the broad context of the properties of multiphase materials. 

Supramolecular Organization of Polymeric Materials in Nanoporous Hard Templates... 

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