Optical films and process for production thereof
A manufacturing method and optical technology, applied in the direction of optics, optical components, optical components, etc., can solve the problems of many carbides, high temperature, and the inability to obtain optical films with appearance and physical properties
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[0183] Hereinafter, although an Example and a comparative example demonstrate this invention more concretely, this invention is not limited to these. In addition, for the sake of convenience below, "parts by mass" are only recorded as "parts", and "liters" are only recorded as
[0184] "L".
[0185]
[0186] The reaction rate during the polymerization reaction and the content rate of the specific monomer unit in the polymer were determined by measuring the amount of unreacted monomer in the obtained polymerization reaction mixture using a gas chromatograph (manufactured by Shimadzu Corporation, device name: GC17A). Find out.
[0187]
[0188] Dissolve or dilute the polymer (or polymer solution or particles) in tetrahydrofuran in advance, then put it into excess hexane or methanol for reprecipitation, and vacuum-dry the taken out precipitate (1mmHg (1.33hPa), 80°C , 3 hours or more), thereby removing volatile components and the like, and analyzing the resulting white soli...
manufacture example 1
[0217] In the 1m equipped with stirring device, temperature sensor, cooling pipe, nitrogen inlet pipe 3 In the reaction kettle, add 136kg methyl methacrylate (MMA), 34kg 2-(hydroxymethyl)methyl acrylate (MHMA), 166kg toluene, feed nitrogen into it, raise the temperature to 105°C at the same time, reflux, and then add 187g of tert-amyl peroxy isononanoate (manufactured by Atofina Jifu, trade name: ルパゾゾル 570) as a polymerization initiator, while dropping the mixture formed by 374g of the polymerization initiator and 3.6kg of toluene in 2 hours. solution, while performing solution polymerization under reflux (about 105-110° C.), and further aging for 4 hours.
[0218] Add 170 g of stearyl phosphate / distearyl phosphate mixture (manufactured by Sakai Chemical Industry Co., Ltd., trade name: Phoslex A-18) to the obtained polymer solution, and carry out the process under reflux (about 90 to 110° C.) for 5 hours. cyclocondensation reaction. Next, the polymer solution obtained in the...
manufacture example 2
[0222] In a 100L stainless steel polymerization tank with a liquid tank and a stirring device, 42.5 parts of methyl methacrylate, 5 parts of N-phenylmaleimide, 0.5 part of styrene, 50 parts of toluene, 0.2 part of as Acetic anhydride of an organic acid and 0.06 parts of n-dodecyl mercaptan as a chain transfer agent were stirred at 100 rpm while boiling with nitrogen for 10 minutes, and then the temperature started to rise under a nitrogen atmosphere.
[0223] When the temperature in the polymerization tank reaches 100°C, add 0.075 parts of tert-butyl peroxy isopropyl carbonate in the polymerization tank, and at the same time, start to add at a constant speed within 5 hours, and use nitrogen to boil in the liquid tank , A mixture of 2 parts of styrene and 0.075 parts of tert-butyl peroxyisopropyl carbonate. Then, at a polymerization temperature of 105 to 110° C., a polymerization reaction was performed under reflux for 15 hours.
[0224] Then, 0.1% by weight of 9,10-dihydro-9-...
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