Data storage medium comprising colloidal metal and preparation process thereof
a technology of colloidal metal and data storage media, which is applied in the direction of optical recording/reproducing/erasing methods, photomechanical devices, instruments, etc., can solve the problems of significant decline in recording sensitivity, unintended polymerization, and difficult to achieve the characteristic of particular performance of holographic recording media designed for data storage applications. , to achieve the effect of sufficient time duration
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example 1
[0022] Bis(2,4-pentanedionate) palladium (II) (Aldrich, 99%) was first added to a mixture of DowCorning® 705 and a difunctional epoxide monomer, PC-1000, and the contents was then stirred at room temperature prior to heating. The mixture was heated slowly to about 80° C. while stirring and held isothermally for about 15 minutes until complete dissolution occurred, at which time the color changed to light yellow. The mixture was then rapidly heated in an oil bath under nitrogen atmosphere while stirring until the color started to change from light yellow to brown, which for example occurs at a bath temperature of about 185° C. for a 50 / 50 mixture (w / w) of DowCorning® 705 and PC-1000, and upon continued heating the mixture turned a blackish color, which for the aforementioned mixture occurred at about a bath temperature of 200° C. The mixture was subsequently kept at this temperature for about 30 minutes and was then cooled to ambient temperature under nitrogen atmosphere. The resulti...
example 2
[0024] Bis(2,4-pentanedionate) platinum (II) (Aldrich, 99%) was first added to a mixture of DowCorning® 705 and a difunctional epoxide monomer, PC-1000, and the contents was then stirred at room temperature prior to heating. The mixture was heated slowly to about 85° C. while stirring and held isothermally for about 15 minutes until complete dissolution occurred, at which time the color changed to light yellow. The mixture was then rapidly heated to about 200° C. under nitrogen atmosphere while stirring and held isothermally at about 200° C. until the color started to change from light yellow to brown, which for example occurs after about 90 minutes for a 50 / 50 mixture (w / w) of DowCorning® 705 and PC-1000. After the solution was held isothermally at about 200° C. for about an additional 45 minutes it turned a blackish color. The mixture was then cooled to ambient temperature under nitrogen atmosphere. The resulting blackish colored solution, which contains colloidal Platinum (0) in ...
example 3
[0027] Palladium (II) acetylacetonate (40.7 mg) was dissolved in 2.0 ml of methylene chloride and then 9.02 g of DowCorning® 705 silicone fluid was added into the mixture. The contents of the mixture were kept under nitrogen atmosphere. The mixture was stirred at ambient temperature for 10 minutes prior to heating, followed by slow heating of the mixture to 80° C. while stirring. The mixture was maintained isothermally at 80° C. for about 15 minutes until complete dissolution occurred, at which time the color changed to a dark yellow. Methylene chloride was then removed from the solution by using a nitrogen purge of the solution. The solution was subsequently heated in an oil bath under nitrogen atmosphere while stirring until the color changed from yellow to brown, which occurred at 175-185° C. Heating was continued additionally to higher temperature until the color changed to a darker blackish color, which occurred at about 200° C. The solution was maintained isothermally at 200° ...
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Abstract
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