- Facile synthesis of hypercrosslinked resin via photochlorination of p-xylene and succedent alkylation polymerization
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A combination of photochlorination of p-xylene and succedent Friedel-Crafts alkylation polymerization was firstly used in the preparation of the hypercrosslinked adsorptive resin. The data of GC-MS and GC showed that a series of chlorizates were produced when p-xylene was photochlorinated. Hypercrosslinked resins could be synthesized by copolymerization, self-polymerization of chlorizates or post crosslinking reaction. The chemical structure and micromorphology of the porous resins were characterized by BET, FT-IR, SEM and elementary analysis (EA). The results showed that the novel adsorptive resins possess high BET surface near to 1038 m2/g and large pore volumes range from 0.5 to 1.2 cm3/g.
- Bai, Ling Ling,Zhou, Yong Hao,Wang, Xiu Li,Yuan, Si Guo,Wu, Xian Li
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experimental part
p. 1115 - 1118
(2012/06/01)
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- Process for the production of aromatic dialdehydes
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A process for the production of aromatic dialdehydes which comprises reacting xylene chloride selected from the group consisting of α,α,α'-trichloroxylene alone, or a mixture of α,α,α'-trichloroxylene and α,α'-dichloroxylene, a mixture of α,α,α'-trichloroxylene and α,α,α',α'-tetrachloroxylene and a mixture of α,α,α'-trichloroxylene, α,α'-dichloroxylene and α,α,α',α'-tetrachloroxylene with nitric acid.
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