FIELD: chemistry.
SUBSTANCE: additive polymerization proceeds with the double bond opening and leads to polymers containing unchanged cyclic structures based on the substituted norbornane skeleton in the backbone. The resulting polymers are used to produce coatings in electronics, telecommunication materials, optical lenses, substrates for plastic displays, photoresistors for the production of chips and displays, dielectrics for semiconductors. The method includes polymerisation of norbornene using a catalyst produced by reacting a cationic palladium complex and boron trifluoride etherate in an organic solvent medium in the presence of norbornene. Distinctive features of the present invention are the use of the initial palladium [(acac) Pd (MeCN)2] BF4, (where acac is acetylacetonate, MeCN = acetonitrile), to which the organophosphorus ligand L is added successively (where L = triphenylphosphine, tricyclohexylphosphine, triisopropylphosphine, bis (diphenyl) phosphinomethane, bis (diphenyl) phosphinopropane, bis (diphenyl) phosphinobutane, bis (diphenyl) phosphinoferrocene) and the cocatalyst-boron trifluoride etherate (BF3⋅OEt2). The process is carried out in an organic solvent medium: mixtures of methylene chloride and toluene, with a molar ratio of ligand to palladium [L]0:[Pd]0=1:1-2:1 and with a molar ratio of boron to palladium [BF3⋅OEt2]0:[Pd]0=10: 1-80:1.
EFFECT: simplifying the polymerization of norbornene derivatives.
2 tbl, 14 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR ADDITIVE COPOLYMERIZATION OF NORBORNENE WITH 5-METHOXYCARBONYLNORBORNENE | 2017 |
|
RU2653060C1 |
METHOD FOR ADDITION POLYMERISATION OF NORBORNENE | 2014 |
|
RU2570703C1 |
METHOD OF PRODUCING (ACETYLACETONATO-κ-O,O')(BIS-ACETONITRILE)PALLADIUM TETRAFLUOROBORATE | 2011 |
|
RU2456295C1 |
METHOD OF PRODUCING (ACETYLACETONATO)(CYCLOOCTADIENE)PALLADIUM TETRAFLUOROBORATE | 2012 |
|
RU2508293C1 |
METHOD OF POLYMERIZATION OF NORBORENE IN PRESENCE OF ANILINE COMPLEXES OF PALLADIUM | 2015 |
|
RU2641690C2 |
METHOD OF PRODUCING NORBORNENE ADDITION POLYMERS | 2007 |
|
RU2383556C2 |
METHOD OF OBTAINING DIFFERENT-LIGAND CATIONIC COMPLEXES OF PALLADIUM | 2009 |
|
RU2423373C1 |
METHOD OF PRODUCING 1,3-DIPHENYLBUTENE-1 | 2012 |
|
RU2487859C1 |
METHOD OF OBTAINING CATIONIC PALLADIUM COMPLEXES | 2011 |
|
RU2466134C1 |
METHOD FOR ADDITION POLYMERISATION OF NORBORNENE | 2012 |
|
RU2487896C1 |
Authors
Dates
2017-07-31—Published
2015-07-20—Filed