By Alaa S. Abd-El-Aziz, Charles E. Carraher, Charles U. Pittman, Martel Zeldin
This sequence offers an invaluable, applications-oriented discussion board for the following iteration of macromolecules and fabrics. functions comprise non-linear optical fabrics, uniqueness magnetic fabrics, liquid crystals, anticancer and antiviral medicines, remedy of arthritis, antibacterial medicines, antifouling fabrics, therapy of sure nutrition deficiencies, electric conductors and semiconductors, piezoelectronic fabrics, electrodes, UV absorption functions, super-strength fabrics, specified lubricants and gaskets, selective catalytic and multi-site catalytic brokers.
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Additional resources for macromolecules containg metal and metal-like elements (boron-containing polymers
The conductivity of the polymer film was evaluated to be ca. 39 The synthesis of luminescent organoboron quinolate polymers (21) (Fig. 15) via a three-step procedure starting from a silylated polystyrene has been communicated. The synthesis was initiated by the highly selective borylation of poly (4-trimethylsilylstyrene) (PS-Si), followed by the replacement of the bromine substituents in poly(4-dibromoborylstyrene) (PS-BBr) with substituted thienyl groups (R ϭ H, 3-hexyl, 5-hexyl). In the final step, the 8-hydroxyquinolato moiety was introduced.
5n B2H6 BBr2 toluene, n −78°C to RT 40 40 (X=Br) [CuMes]n, 40Mes (X=Mes) toluene, 80°C Figure 28 Synthesis of bromo-substituted, boranediyl-bridged poly(ferrocenylene)s (40) from Fc(BBr2)2. (Adapted from ref. ) is the p-conjugated organoboron polymer (41) (Fig. 63 Similar p-conjugated boron polymers (42a or 42b) (Fig. 29) containing Pt or Pd in place of Ru in the polymer backbone have also been developed. 64 22 The State of the Art in Boron Polymer Chemistry Ph Ph Ph P P Ph Ru B n Ph Ph P P Ph Ph 41 P(n-Bu)3 Trp M B Trp : n P(n-Bu)3 M = Pt (42a) or Pd (42b) Figure 29 p-Conjugated organoboron polymer containing phosphine ligands with Ru (41), Pt (42a), or Pd (42b) in the polymer backbone.
In the solid state, the polymer [33иbipy]n exhibited an intense blue to purple color indicative of the charge-transfer reaction between the electron-rich ferrocene moieties and the viologen-like R3B–bipy–R3B units. In the [33иpyetpy]n polymer, the disruption of the extended p-system due to the insertion of an ethylene spacer into the central CᎏC bond of the bipy ligand was observed to destroy its viologen-like electron accepting ability. As a consequence, it was found to lose its intense color, thereby rendering it yellow in appearance.