GB980109A - Trifluoromethylphenyl polysiloxanes - Google Patents

Trifluoromethylphenyl polysiloxanes

Info

Publication number
GB980109A
GB980109A GB47648/62A GB4764862A GB980109A GB 980109 A GB980109 A GB 980109A GB 47648/62 A GB47648/62 A GB 47648/62A GB 4764862 A GB4764862 A GB 4764862A GB 980109 A GB980109 A GB 980109A
Authority
GB
United Kingdom
Prior art keywords
polymers
preparation
compounds
polysiloxanes
octamethylcyclotetrasiloxane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB47648/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US160272A external-priority patent/US3328348A/en
Priority claimed from US160262A external-priority patent/US3318935A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB980109A publication Critical patent/GB980109A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/0834Compounds having one or more O-Si linkage
    • C07F7/0838Compounds with one or more Si-O-Si sequences
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/21Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04Polysiloxanes
    • C08G77/22Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/24Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/48Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
    • C08G77/50Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages
    • C08G77/52Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages containing aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Silicon Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention comprises compounds of the formula <FORM:0980109/C3/1> where n and a are each 0 or 1, and b is 1, 2, or 3, and R is a monovalent hydrocarbon radical without aliphatic unsaturation, and polymers thereof. They are prepared by the reaction of tetraphenyl disiloxane diol-1,3 or hexaphenyl trisiloxane diol-1,5 with the appropriate organohalosilane <FORM:0980109/C3/2> where X is halogen, and a is as above, in an inert solvent, in the presence of a hydrogen halide acceptor, e.g. a tertiary amine, in particular pyridine. Polymers containing the recurrent unit <FORM:0980109/C3/3> where a, b and n, and R are as above, are prepared by heating the compounds (I) alone at 250-350 DEG C., or, preferably, with a catalyst at 120-170 DEG C. A suitable catalyst is a 0.01-1% solution of KOH in octamethylcyclotetrasiloxane, amounting to 10-100 p.p.m. of KOH in the monomer. Copolymers of compounds (I) with themselves or other cyclic polysiloxanes, e.g. those of Specifications 980,101, 980,102, 980,103, 980,104, 980,105, 980,106, 980,107 and 980,108, or cyclic dialkyl- or diaryl-polysiloxanes, are made from mixtures in the same way. All polymers containing units (II) can be cross-linked by irradiation, e.g. with 50,000-20,000,000 eV electrons, and those containing vinyl, cyclo alkyl or adjacent methyl groups, or alkyl groups with more than one carbon atom, can be cured with conventional free radical (e.g. peroxide or zirconyl nitrate) curing agents. Fillers may be added before cure, if desired, and may suitably be silica (aerogel, fumed, precipitated), TiO2, CaCO3, CaSiO3, Fe2O3, Cr2O3, CdS, lithopone, asbestos, talc, carbon black, glass fibres &c. The examples describe the preparation of 1,1 - bis - (m - trifluromethylphenyl)tetraphenyl cyclotrisiloxane and of p-trifluoromethylphenyl pentaphenyl cyclotrisiloxane, and the preparation and use of their polymers for encapsulation of transformers. Also described is the preparation, and cure by irradiation, of a copolymer of octamethylcyclotetrasiloxane with 1-methyl-1 - [3,5 - bis - (trifluoromethyl) - phenyl] - hexaphenylcyclotetrasiloxane. Uses:-Seals in automotive transmissions, flexible supports for elements to be used in atomic reactors.
GB47648/62A 1961-12-18 1962-12-18 Trifluoromethylphenyl polysiloxanes Expired GB980109A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US160272A US3328348A (en) 1961-12-18 1961-12-18 Trifluoromethylphenyl polysiloxanes
US160262A US3318935A (en) 1961-12-18 1961-12-18 Organosilicon material

Publications (1)

Publication Number Publication Date
GB980109A true GB980109A (en) 1965-01-13

Family

ID=26856740

Family Applications (2)

Application Number Title Priority Date Filing Date
GB47648/62A Expired GB980109A (en) 1961-12-18 1962-12-18 Trifluoromethylphenyl polysiloxanes
GB47641/62A Expired GB980102A (en) 1961-12-18 1962-12-18 Phenyl polysiloxanes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB47641/62A Expired GB980102A (en) 1961-12-18 1962-12-18 Phenyl polysiloxanes

Country Status (2)

Country Link
DE (2) DE1495890A1 (en)
GB (2) GB980109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015016730A2 (en) 2013-08-02 2015-02-05 Active Aerogels, Unipessoal, Lda. Method for production of flexible panels of hydrophobic aerogel reinforced with fibre felts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655050B1 (en) * 1989-11-24 1992-03-20 Rhone Poulenc Chimie THERMOTROPIC MACROCYCLES CONSISTING OF MESOGENIC BLOCKS OF THE AROMATIC AZOMETHINE TYPE AND DIORGANOPOLYSILOXANE BLOCKS AND THEIR PREPARATION METHOD.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015016730A2 (en) 2013-08-02 2015-02-05 Active Aerogels, Unipessoal, Lda. Method for production of flexible panels of hydrophobic aerogel reinforced with fibre felts

Also Published As

Publication number Publication date
DE1495894A1 (en) 1969-10-09
GB980102A (en) 1965-01-13
DE1495890A1 (en) 1969-05-14

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