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
  • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
  • C08G64/20—General preparatory processes
  • C08G64/32—General preparatory processes using carbon dioxide
  • C08G64/34—General preparatory processes using carbon dioxide and cyclic ethers
• • 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
  • C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
  • C08G64/40—Post-polymerisation treatment
  • C08G64/406—Purifying; Drying
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
  • C08J5/20—Manufacture of shaped structures of ion-exchange resins
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
  • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates

Definitions

• a ninth aspect of the present invention there is provided a method for purifying a polymer product formed from a polymerisation process comprising the reaction of carbon dioxide with an epoxide in the presence of a metal complex catalyst, the method comprising the steps of:
• a method for purifying a polymer product formed from a polymerisation process comprising the reaction of carbon dioxide with an epoxide in the presence of a metal complex catalyst, the method comprising the steps of:
• R 3 can be independently selected from substituted or unsubstituted alkylene, alkenylene, alkynylene, heteroalkylene, heteroalkenylene or heteroalkynylene, arylene or cycloalkylene.
• R 3 is selected from substituted or unsubstituted alkylene, cycloalkylene, alkenylene, heteroalkylene and arylene.
• the catalyst has a neutral overall charge.
• M and/or M 2 may each have one or more optional X groups (n and m) co-ordinated to the metal centre depending on the oxidization state of the M and M 2 metals and, when present, on the charge of the Y and Y 2 groups used, wherein X is as defined above.
• X is as defined above.
• the ligand without the Y groups has a charge of 2-
• the catalyst may have an overall charge of 0. In this case, no additional X groups are coordinated to the metal centres.
• Double metal cyanide (PMC) catalyst Double metal cyanide (PMC) catalyst
• M" may be selected from Zn(ll), Ru(ll), Ru(lll), Fe(ll), Ni(ll), Mn(ll), Co(ll), Sn(ll), Pb(ll), Fe(lll), Mo(IV), Mo(VI), Al(lll), V(V), V(VI), Sr(ll), W(IV), W(VI), Cu(ll), and Cr(lll), M" is preferably selected from Zn(ll), Fe(ll), Co(ll) and Ni(ll), even more preferably M' is Zn(ll).
• Preferred polyethers include PPGs, such as PPG polyols, particularly diols and triols, said PPGs having molecular weights of from about 250 Daltons to about 8,000 Daltons, more preferably from about 400 Daltons to about 4,000 Daltons.
• the skilled person will appreciate that the epoxide can be obtained from “green” or renewable resources.
• the epoxide may be obtained from a (poly)unsaturated compound, such as those deriving from a fatty acid and/or terpene, obtained using standard oxidation chemistries.
• the polymerisation process may be carried out in the presence of a solvent.
• solvents include toluene, diethyl carbonate, dimethyl carbonate, dioxane, dichlorobenzene, methylene chloride, propylene carbonate, ethylene carbonate, etc.
• the wt% of carbon dioxide in the polymers will be different due to the differing proportion of the mass of the chain transfer agent in the overall polymer molecular weight (Mn). For example, if m/(m+n) was 0.5, the two polyether carbonate polyols described would have carbon dioxide contents of 26.1 wt% and 20.6 wt% respectively.
• the acidic ion exchange resin may be in the form of polymer beads ('free' polymer beads), which may optionally be in the form of a packed resin bed.
• the crude polymer product is typically contacted with the ion exchange resin by mixing the 'free' polymer beads into the crude polymer product.
• the acidic ion exchange resin is in the form of polymer beads in a packed rein bed, the crude polymer product is typically contacted with the ion exchange resin by passing a volume of the crude polymer product through the packed resin bed.
• the crude polymer product may be contacted with the solid phase for any suitable amount of time.
• the crude polymer product may be contacted with the solid phase for at least 1 minute, such as at least 10 minutes, such as at least 30 minutes, such as at least 1 hour, 2 hours, 3 hours, 4 hours, 5 hours, 6 hours, 12 hours, 18 hours, 24 hours, 36 hours, 48 hours or 72 hours.
• the length of time for which the crude polymer product is contacted with the solid phase is equivalent to the residence time of the crude polymer product with the solid phase.
• halide or "halogen” are used interchangeably and, as used herein mean a fluorine atom, a chlorine atom, a bromine atom, an iodine atom and the like, preferably a fluorine atom, a bromine atom or a chlorine atom, and more preferably a fluorine atom.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Manufacturing & Machinery (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Polyesters Or Polycarbonates (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Polyethers (AREA)
• Processing Of Solid Wastes (AREA)
• Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
• Catalysts (AREA)

Priority Applications (11)

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Publications (1)

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Citations (4)

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• 2017
  • 2017-10-24 GB GBGB1717441.8A patent/GB201717441D0/en not_active Ceased
• 2018
  • 2018-10-24 KR KR1020207014825A patent/KR102689110B1/ko active Active
  • 2018-10-24 MX MX2020004290A patent/MX2020004290A/es unknown
  • 2018-10-24 EP EP18797042.1A patent/EP3700961A1/en active Pending
  • 2018-10-24 RU RU2020116803A patent/RU2020116803A/ru unknown
  • 2018-10-24 AU AU2018357067A patent/AU2018357067A1/en not_active Abandoned
  • 2018-10-24 US US16/758,179 patent/US11613606B2/en active Active
  • 2018-10-24 WO PCT/GB2018/053084 patent/WO2019081932A1/en not_active Ceased
  • 2018-10-24 CN CN201880084085.2A patent/CN111601837B/zh active Active
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  • 2018-10-24 JP JP2020522960A patent/JP2021500447A/ja active Pending
• 2020
  • 2020-04-23 SA SA520411827A patent/SA520411827B1/ar unknown
• 2024
  • 2024-01-05 JP JP2024000772A patent/JP2024050584A/ja active Pending

Patent Citations (4)

Non-Patent Citations (1)

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