Poly hydroxybenzenes

Bond angles, in mono-/poly-hydroxybenzenes 200, 201, 203, 204 Bond dissociation, O—H 129-143 Bond dissociation energy 5, 224, 895 O-H 139, 140, 982 Bond dissociation enthalpy 3 Bond lengths, in mono-/poly-hydroxybenzenes 200, 201, 203, 204 Bond orbitals, natural 3 Borins—see 1,3,2-Dioxaborins Bovine semm albumin 978 Boyland-Sims oxidation 409 Boyland-Sims rearrangement 801 Bromination 649-651 of calixarenes 1403... 

Yoshida, K. Nishio, S. Spectrally sensitized silver halide photographic material containing poly-hydroxybenzene. Jpn. Kokai Xokkyo Koho JP03025432, 99, Chem. Abstr. 1991,115,102751. 

Also, antioxidants were found to decrease the aging rate of natural rubber. Among the antioxidants more frequently used are N-phenyl-p-naphthylamine, 2,6-di-tert-butyl-4-methyl-1-hydroxybenzene (BHT), N-isopropyl-N -phenyl-p-phenylenediamine, N-(1,3-dimethylbutyl)-N -p-phenylenediamine, and poly-(2,2,4-trimethyl-1,2-dihydroquinoline). 

Osano et al. [162] reported the synthesis of hybrid linear-dendritic ABA -type architectures, where A and B were hb poly(ether ketone)s and linear poly(ether sulfone)s, respectively. They prepared an AB2 monomer [3,5-bis(4 -fluorobenzoyl) phenol] to construct the hb segments, in an attempt to provide better control of the resultant hb structures than by utilizing the A2 + B3 approach. The monomer combination of linear block and AB2 monomer for the formation of ABA-type architecture are shown in Table 4, entry 4. Unreacted terminal groups of the ABA polymers were capped by teri-butylphenol and sodium 4-hydroxybenzene sulfonate. Such a flexible approach could allow different functional groups on the polymer chain ends simply by replacing the functional group on the phenol in the last part of the synthesis. 

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