摘要:
This invention concerns copolymers that may be used for incorporation into electrolytic membranes for lithium generators, comprising at least one vinyl ether repetitive unit comprising a pendant cyclic carbonate group.
摘要:
The invention relates to novel copolymers and to an associated preparation method, comprising recurrent units bearing a pendant chain of the polyoxyalkylene type.
摘要:
The invention relates to novel copolymers and to an associated preparation method, comprising recurrent units bearing a pendant chain of the polyoxyalkylene type.
摘要:
Disclosed herein is a crosslinked fluoropolymer network formed by the free radical initiated crosslinking of a diacrylate fluoropolymer The diacrylate copolymer is of formula CH2═CR′COO—(CH2)n—R—(CH2)n—OOCR′═CH2, wherein R is selected from the group consisting of i) an oligomer comprising copolymerized units of vinylidene fluoride and perfluoro(methyl vinyl ether), ii) an oligomer comprising copolymerized units of vinylidene fluoride and hexafluoropropylene, iii) an oligomer comprising copolymerized units of tetrafluoroethylene and perfluoro(methyl vinyl ether), and iv) an oligomer comprising copolymerized units of tetrafluoroethylene and a hydrocarbon olefin, R′ is H or —CH3, n is 1-4 and wherein said oligomer has a number average molecular weight of 1000 to 25,000 daltons. The source of the free radicals may be a photoinitiator or an organic peroxide.
摘要:
RF-compositions including surfactants, foam stabilizers, monomers, polymers, urethanes, intermediates, metal complexes, phosphate esters as well as telomerization methods are provided.
摘要:
Fluorinated copolymers are prepared via copolycondensation polymerization in a process comprising reacting A) a telechelic fluoroazido compound of formula N3(Y)p—(CH2)n—R—(CH2)m—(Y)pN3, wherein Y is SO, SO2, C6H4, or CO, p=0 or 1, n and m are independently 1 to 4, and R is selected from the group consisting of i) a C3-C10 fluoroalkylene group, ii) a C3-C10 fluoroalkoxylene group, iii) a substituted aryl group, iv) an oligomer comprising copolymerized units of vinylidene fluoride and perfluoro(methyl vinyl ether), v) an oligomer comprising copolymerized units of vinylidene fluoride and hexafluoropropylene, vi) an oligomer comprising copolymerized units of tetrafluoroethylene and perfluoro(methyl vinyl ether), and vii) an oligomer comprising copolymerized units of tetrafluoroethylene and a hydrocarbon olefin with B) a telechelic diyne or dinitrile compound in the presence of copper halide catalyst.
摘要:
Compositions are provided that can include RF(RT)nQ, and/or RCl(RT)nH. The RF group can have four fluorine atoms, the RT group can include a C-2 group having a pendant —CF3 group, n can be at least 1, the R1 group can include a carbon atom, the RCl group can be —CCl3, and the Q group can include one or more atoms of the periodic table of elements. Telomerization processes are also provided.
摘要翻译:提供的组合物可以包括R 1,R 2和R 3(R 3) n H H。 R 1 F可以具有四个氟原子,R T可以包括具有-CF 3 N侧基的C-2基团, n可以至少为1,R 1可以包括碳原子,R 1可以是-CCl 3,并且 Q基团可以包括元素周期表的一个或多个原子。 还提供了调聚过程。
摘要:
RF-compositions including surfactants, foam stabilizers, monomers, polymers, urethanes, intermediates, metal complexes, phosphate esters as well as telomerization methods are provided.
摘要:
Compositions are provided that can include RF(RT)nQ, The RF group can have four fluorine atoms, the RT group can include a C-2 group having a pendant —CF3 group, n can be at least 1, the R1 group can include a carbon atom, the RCl group can be —CCl3, and the Q group can include one or more atoms of the periodic table of elements. Telomerization processes are also provided.
摘要:
Compositions are provided that can include RF(RT)nQ, and/or RCl(RT)nH. The RF group can have four fluorine atoms, the RT group can include a C-2 group having a pendant —CF3 group, n can be at least 1, the R1 group can include a carbon atom, the RCl group can be —CCl3, and the Q group can include one or more atoms of the periodic table of elements. Telomerization processes are also provided.
摘要翻译:提供的组合物可以包括R 1,R 2和R 3(R 3) n H H。 R 1 F可以具有四个氟原子,R T可以包括具有-CF 3 N侧基的C-2基团, n可以至少为1,R 1可以包括碳原子,R 1可以是-CCl 3,且 Q基团可以包括元素周期表的一个或多个原子。 还提供了调聚过程。