Chung Shan Institute of Science and Technology

Chang-Chih Lin

Wen-Chiung Su

Ching-Shang Sheng

Shean-Jeng Jong

Yu-Sheng Lin

A bisbiphenylacylphosphine oxide of formula (I) and its preparation method are provided. The formula of &#x2014;Ar&#x2014; is First, 10-chloro-9,10-dihydro-9-oxa-10-phosphaphenanthrene (CDOP) is prepared by using 2-phenylphenol, and then is esterified to synthesize 6-methoxy-(6H)-dibenz[c,e][1,2]oxa-phosphorin (MDOP). Next, acid chloride compounds are added for performing the Arbuzov reaction to synthesize bisbiphenylacylphosphine oxide. CDOP is hydrolyzed to be derived into 9,10-dihydro-9-oxa-10-phosphaphen-anthrene-10-oxide (DOPO), and then DOPO reacts with arylaldehyde to form secondary alcohol. Therefore, bisbiphenylacylphosphine oxide is prepared by using secondary alcohol under oxidation. Also, under a coupling reaction, DOPO reacts with the acid chloride compounds by using a Lewis acid as a catalyst to prepare bisbiphenylacylphosphine oxide. 

Bisbiphenylacylphosphine oxide and preparation method therefore

A method for synthesizing a pentafluorophenyl acrylate polymer includes bulk polymerizing a pentafluorophenyl acrylate monomer in the presence of a free radical initiator. The reactant mixture was subjected to an ultrasonication treatment, so that the mixing of the initiator and the monomer is enhanced; carried out the bulk polymerization at 25-99&#xb0; C. for a period of time, and at 100-200&#xb0; C. under a vacuum pressure for another period of time to complete the bulk polymerization, so that residue amounts of the initiator, unreacted monomer and oligomer of the monomer are reduced in the resulting reaction mixture.

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Longtan, Taiwan

Chang-Chih Lin