发明名称 |
SYNTHESIS OF CHLOROTRIFLUOROETHYLENE-BASED BLOCK COPOLYMERS BY IODINE TRANSFER POLYMERIZATION |
摘要 |
Methods for the synthesis of CTFE-based block copolymers through iodine transfer polymerization are disclosed. In an exemplary embodiment, a method includes reacting a fluoromonomer “M” with a chain transfer agent of the formula X—Y or Y—X—Y, wherein X represents a C1-C3 hydrocarbon, a C1-C6 hydrofluorocarbon, C1-C6 hydrochlorofluorocarbon, or C1-C6 fluorocarbon and Y represents iodine or bromine, in the presence of a radical initiator, to form a macro-initiator of the formula: X-poly(M)-Y or Y-poly(M)-X-poly(M)-Y, wherein poly(M) represents a polymer of the fluoromonomer. The method further includes reacting the macro-initiator with chlorotrifluoroethylene (CTFE) in the presence of a radical initiator to form a diblock or a triblock CTFE-based block copolymer of the formula: X-poly(M)-block-poly(CTFE) or PCTFE-block-poly(M)-X-poly(M)-block-PCTFE. |
申请公布号 |
US2015094428(A1) |
申请公布日期 |
2015.04.02 |
申请号 |
US201414448062 |
申请日期 |
2014.07.31 |
申请人 |
Honeywell International Inc. |
发明人 |
Thenappan Alagappan;Ameduri Bruno;Lopez Gerald |
分类号 |
C08F299/00 |
主分类号 |
C08F299/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for the synthesis of CTFE-based block copolymers through iodine transfer polymerization, comprising:
reacting, in the presence of a radical initiator, a fluoromonomer “M” with a chain transfer agent of the formula:
X—YorY—X—Y, wherein X represents a C1-C3 hydrocarbon, a C1-C6 hydrofluorocarbon, a C1-C6 hydrochlorofluorocarbon, or a C1-C6 fluorocarbon and Y represents iodine or bromine, thereby forming a macro-initiator of the formula:
X-poly(M)-YorY-poly(M)-X-poly(M)-Y, wherein poly(M) represents a polymer of the monomer; and reacting, in the presence of a radical initiator, the macro-initiator with chlorotrifluoroethylene (CTFE), thereby forming a diblock or a triblock CTFE-based block copolymer of the formula:
X-poly(M)-block-PCTFEorPCTFE-block-poly(M)-X-poly(M)-block-PCTFE. |
地址 |
Morristown NJ US |