GB999125A - A process for preparing organosilicon polymers - Google Patents

A process for preparing organosilicon polymers

Info

Publication number
GB999125A
GB999125A GB12423/64A GB1242364A GB999125A GB 999125 A GB999125 A GB 999125A GB 12423/64 A GB12423/64 A GB 12423/64A GB 1242364 A GB1242364 A GB 1242364A GB 999125 A GB999125 A GB 999125A
Authority
GB
United Kingdom
Prior art keywords
radical
halohydrocarbon
formula
components
monovalent hydrocarbon
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
GB12423/64A
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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
Application filed by Dow Corning Corp filed Critical Dow Corning Corp
Publication of GB999125A publication Critical patent/GB999125A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/48—Macromolecular 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
    • C08G77/50—Macromolecular 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • C08G77/08—Preparatory processes characterised by the catalysts used

Landscapes

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

Abstract

Organosilicon polymers are made by contacting, and preferably heating, (1) (a) a cyclictrisiloxane of the formula (R2SiO)3, wherein each R is a monovalent hydrocarbon (saturated or unsaturated), halohydrocarbon or cyanoalkyl radical, or (b) a cyclic silethylenesiloxane of the formula <FORM:0999125/C3/1> wherein each X is a monovalent hydrocarbon or halohydrocarbon (free from aliphatic unsaturation) or cyanoalkyl radical, with (2) a compound of the formula <FORM:0999125/C3/2> wherein R1 is a halogen atom or a monovalent hydrocarbon, halohydrocarbon or hydrocarbonoxy radical of 1 to 10 C atoms, M is alkali metal atom or a tetraorganonitrogen or tetraorganophosphorus radical, m is 0, 1, 2 or 3, n is 1, 2 or 3 and m+n is 1, 2, 3 or 4. Component (1) can also be a mixture of 2 or more components (a), 2 or more components (b) or a mixture of components (a) and (b). The process may be effected in an organic solvent, and moisture should desirably be excluded or even removed. The catalysts, which are not siloxane bond rearrangement catalysts, need not be removed, though they may be removed as by washing with water. In a typical Example (1), 3,3,3-trifluoropropylmethylsiloxane cyclic trimer and lithium phenoxide were mixed together and heated in a sealed bottle for 17 hours at 177 DEG C. to yield a high polymer. Specifications 832,489 and 911,818 are referred to.
GB12423/64A 1963-03-25 1964-03-24 A process for preparing organosilicon polymers Expired GB999125A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26776663A 1963-03-25 1963-03-25
FR963515A FR1386705A (en) 1963-03-25 1964-02-12 Cyclotrisiloxane polymerization process

Publications (1)

Publication Number Publication Date
GB999125A true GB999125A (en) 1965-07-21

Family

ID=26205873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12423/64A Expired GB999125A (en) 1963-03-25 1964-03-24 A process for preparing organosilicon polymers

Country Status (2)

Country Link
FR (1) FR1386705A (en)
GB (1) GB999125A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415728A (en) * 1967-03-17 1968-12-10 Gen Electric Photopolymerization of cyclotrisiloxanes
EP0465129A1 (en) * 1990-06-29 1992-01-08 Shin-Etsu Chemical Co., Ltd. Fluorine-containing organosilicon compound
JPH0459784A (en) * 1990-06-29 1992-02-26 Shin Etsu Chem Co Ltd Fluorine-containing organic silicon compound
JPH0459785A (en) * 1990-06-29 1992-02-26 Shin Etsu Chem Co Ltd Fluorine-containing organic silicon compound
JPH0459783A (en) * 1990-06-29 1992-02-26 Shin Etsu Chem Co Ltd Fluorine-containing organic silicon compound
JPH0466587A (en) * 1990-06-29 1992-03-02 Shin Etsu Chem Co Ltd Fluorine-containing organosilicon compound

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415728A (en) * 1967-03-17 1968-12-10 Gen Electric Photopolymerization of cyclotrisiloxanes
EP0465129A1 (en) * 1990-06-29 1992-01-08 Shin-Etsu Chemical Co., Ltd. Fluorine-containing organosilicon compound
JPH0459784A (en) * 1990-06-29 1992-02-26 Shin Etsu Chem Co Ltd Fluorine-containing organic silicon compound
JPH0459785A (en) * 1990-06-29 1992-02-26 Shin Etsu Chem Co Ltd Fluorine-containing organic silicon compound
JPH0459783A (en) * 1990-06-29 1992-02-26 Shin Etsu Chem Co Ltd Fluorine-containing organic silicon compound
JPH0466587A (en) * 1990-06-29 1992-03-02 Shin Etsu Chem Co Ltd Fluorine-containing organosilicon compound

Also Published As

Publication number Publication date
FR1386705A (en) 1965-01-22

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