FIELD: catalysts, chemical technology.
SUBSTANCE: invention relates to a method for preparing a catalyst used in additive polymerization of norbornene to polynorbornenes. Invention describes a method for preparing a catalyst for additive polymerization of norbornene involving interaction of palladium (II) compound with boron trifluoride etherate in toluene medium as a solvent. Components are mixed in the following order: palladium compound solution is added to norbornene solution in organic solvent followed by addition of boron trifluoride etherate. Optimal conditions for the process are the following: the molar ratio boron to palladium, B : Pd = (5-1):(60-1), temperature 15-60°C. Invention provides enhancing effectiveness of the polymerization process. Synthesized compounds are used in producing cover in electronics, television-communication materials, optical lens, substrates for plastic displays, photoresistors for producing chips and displays, dielectrics for semiconductors.
EFFECT: improved method of synthesis.
1 cl, 6 tbl, 27 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PRODUCING NORBORNENE ADDITION POLYMERS | 2007 |
|
RU2383556C2 |
METHOD FOR ADDITION POLYMERISATION OF NORBORNENE | 2014 |
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METHOD FOR ADDITION POLYMERISATION OF NORBORNENE | 2012 |
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RU2487895C1 |
METHOD OF POLYMERIZATION OF NORBORENE IN PRESENCE OF ANILINE COMPLEXES OF PALLADIUM | 2015 |
|
RU2641690C2 |
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RU2626745C2 |
METHOD FOR ADDITION POLYMERISATION OF NORBORNENE | 2012 |
|
RU2487896C1 |
METHOD FOR ADDITIVE COPOLYMERIZATION OF NORBORNENE WITH 5-METHOXYCARBONYLNORBORNENE | 2017 |
|
RU2653060C1 |
METHOD OF PREPARING STYRENE OLIGOMERIZATION CATALYST | 1996 |
|
RU2129043C1 |
METHOD OF PREPARING CATALYST FOR OLIGOMERIZATION OF STYRENE | 2005 |
|
RU2290995C1 |
Authors
Dates
2008-01-20—Published
2006-08-03—Filed