Polymer Synthesis and Structure

Chen H, Olmstead MM, Albright RL, Devenyi J, Fish RH (1997) Metal-ion-templated polymers Synthesis and structure of N-(4-vinylbenzyl)- l,4,7-triazacyclononanezinc(II) complexes, their copolymeiization with divinylbenzene, and metal-ion selectivity studies of the demetalated resins - evidence for a sandwich complex in the polymer matrix. Angew Chem Int Ed Engl 36 642... 

In the classical period (Table 14.12) a basic understanding of polymer synthesis and structure was achieved. Concepts like the random coil, folded-chain... 

Chandrasekhar V 1998 Polymer solid electrolytes synthesis and structure/4dv. Polym. Sc/. 135 139-205... 

The careful control of electronic properties is, of course, a key motivation of such structural changes the so-called band-gap tuning being a particularly important concern. Efficiency of synthesis and structural homogeneity of the products are essential ingredients of such an approach since failure to achieve e.g. quantitative transformation of precursor polymers or to couple benzene units exclusively in a para-fashion interrupts the extensive -conjugation and hampers a reliable structure-propcrty-relalion. 

Chemistry, reaction mechanisms, and properties have been extensively reviewed.4,5,10-20 Hie present chapter deals witii only one type of fully cyclized aromatic heterocyclic polymers die high-molecular-weight linear polymer witii a special emphasis on die synthesis and structure—property relationships for specific applications. 

Chandrasekhar, V. Polymer Solid Electrolytes Synthesis and Structure, Vol 135, pp, 139-206 Charleux, B Faust R Synthesis of Branched Polymers by Cationic Polymerization, Vol. 142, pp. 1-70. 

Polymer Synthesis and Characterization. This topic has been extensively discussed in preceeding papers.(2,23,24) However, we will briefly outline the preparative route. The block copolymers were synthesized via the sequential addition method. "Living" anionic polymerization of butadiene, followed by isoprene and more butadiene, was conducted using sec-butyl lithium as the initiator in hydrocarbon solvents under high vacuum. Under these conditions, the mode of addition of butadiene is predominantly 1,4, with between 5-8 mole percent of 1,2 structure.(18) Exhaustive hydrogenation of polymers were carried out in the presence of p-toluenesulfonylhydrazide (19,25) in refluxing xylene. The relative block composition of the polymers were determined via NMR. 

Chandrasekhar, V. Polymer Solid Electrolytes Synthesis and Structure. Vol. 135, pp. 139-206. 

The synthesis and structure of a dendrimer can be illustrated by the well-known poly (amidoamine) type (called PAMAM), which describes the monomers making up the complete polymer. The synthesis starts from a core diamine (or ammonia) molecule. The diamine can be of various lengths and spacer arm properties and even contain cleavable components. Typically, the core... 

In the following chapter, Taviot-Gu ho and Leroux review the synthesis and structural features of nanocomposite materials prepared by the assembly of LDHs and polymers or polymer precursors and discuss how the properties of the resulting hybrid materials are related to their structure. 

Lang M, Wong RP, Chu C-C (2002) Synthesis and structural analysis of functionalized poly (s-caprolactone)-based three arm star polymers. J Polym Sci A Polym Chem 40 1127-1141... 

The synthesis and structures of transition metal complexes of anionic cyclo-polypnictogen ligands, e.g. cyclo-P5, are discussed in Section 7.2.1 and 11.2. An exciting recent development involves the use of these complexes as building blocks for the construction of novel supramolecular assemblies, including one-dimensional (ID) and two-dimensional (2D) polymers and even soluble spherical fullerene-like aggregates.Complexes that have been used for this... 

Synthesis and Structure of Heparin-Containing Polymers 3.1 Ionic Immobilization... 

In a majority of works on LC polymers, the main attention was paid to the synthesis and structural studies of such polymers. Significantly less information is available on physical properties of LC polymers, especially, when compared to low-molecular liquid crystals. In this chapter some rheological and dielectric properties of polymeric liquid crystals, characteristics of their dynamic properties and intramolecular mobility, are considered. 

---