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公开(公告)号：US08207235B2
公开(公告)日：2012-06-26
申请号：US12445420
申请日：2007-10-16
CPC分类号： C08J5/2237 , C08F8/22 , C08F214/18 , C08F214/26 , C08J2327/18 , H01M8/1023 , H01M8/1025 , H01M8/1039 , H01M8/1072 , H01M2300/0082 , Y02P70/56
摘要： The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising: suspending at least one semi-crystalline fluoropolymer having ion exchange groups [polymer (I)] in at least one fluorinated organic dispersing medium [medium (M)] so as to obtain a dispersion (D) of polymer (I) in a dispersing medium (M); contacting said dispersion (D) with fluorine under irradiation with U.V. radiation so as to obtain a stabilized polymer. Still objects of the invention are a stable semi-crystalline fluoropolymer as above defined having a low amount of unstable ends groups of —COF type, the use of the stabilized fluoropolymer obtained by the process or of the stable fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly comprising said fluoropolymers.
摘要翻译： 本发明涉及一种稳定包含离子交换基团的半结晶含氟聚合物的方法，所述方法包括：在至少一种氟化有机分散介质[介质中]悬浮至少一种具有离子交换基团[聚合物（I）]的半结晶含氟聚合物 （M）]，得到分散介质（M）中的聚合物（I）的分散液（D）。 在与紫外线照射下使所述分散体（D）与氟接触。 辐射以获得稳定的聚合物。 本发明的另一目的是如上定义的稳定的半结晶含氟聚合物，其具有少量-COF型的不稳定端基，通过该方法获得的稳定的含氟聚合物或在燃料电池装置中使用稳定的含氟聚合物，膜 以及包含所述含氟聚合物的膜 - 电极组件。
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公开(公告)号：US08357725B2
公开(公告)日：2013-01-22
申请号：US13474301
申请日：2012-05-17
CPC分类号： C08J5/2237 , C08F8/22 , C08F214/18 , C08F214/26 , C08J2327/18 , H01M8/1023 , H01M8/1025 , H01M8/1039 , H01M8/1072 , H01M2300/0082 , Y02P70/56
摘要： The invention pertains to a semi-crystalline fluoropolymer having ion exchange groups comprising recurring units derived from at least one ethylenicalty unsaturated monomer comprising at least one fluorine atom (fluorinated monomer); and a substantial amount of recurring units derived from at least one ethylenically unsaturated monomer comprising at least one ion exchange group (functional monomer), wherein the amount of unstable end groups of —COF type is of less than 0.05 mmol/kg, and the use of the stabilized fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly.
摘要翻译： 本发明涉及具有离子交换基团的半结晶含氟聚合物，其包含衍生自至少一种包含至少一个氟原子（氟化单体）的乙烯不饱和单体的重复单元; 和至少一种包含至少一种离子交换基团（官能单体）的烯键式不饱和单体的重复单元，其中-COF类型的不稳定端基的量小于0.05mmol / kg，并且使用 的燃料电池装置中的稳定的含氟聚合物，膜和膜 - 电极组件。
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公开(公告)号：US20120289616A1
公开(公告)日：2012-11-15
申请号：US13474301
申请日：2012-05-17
IPC分类号： B01J39/20
CPC分类号： C08J5/2237 , C08F8/22 , C08F214/18 , C08F214/26 , C08J2327/18 , H01M8/1023 , H01M8/1025 , H01M8/1039 , H01M8/1072 , H01M2300/0082 , Y02P70/56
摘要： The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising: suspending at least one semi-crystalline fluoropolymer having ion exchange groups [polymer (I)] in at least one fluorinated organic dispersing medium [medium (M)] so as to obtain a dispersion (D) of polymer (I) in a dispersing medium (M); contacting said dispersion (D) with fluorine under irradiation with U. V. radiation so as to obtain a stabilized polymer. Still objects of the invention are a stable semi-crystalline fluoropolymer as above defined having a low amount of unstable ends groups of —COF type, the use of the stabilized fluoropolymer obtained by the process or of the stable fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly comprising said fluoropolymers.
摘要翻译： 本发明涉及一种稳定包含离子交换基团的半结晶含氟聚合物的方法，所述方法包括：在至少一种氟化有机分散介质[介质中]悬浮至少一种具有离子交换基团[聚合物（I）]的半结晶含氟聚合物 （M）]，得到分散介质（M）中的聚合物（I）的分散液（D）。 在用U.V辐射照射下使所述分散体（D）与氟接触，以获得稳定的聚合物。 本发明的另一目的是如上定义的稳定的半结晶含氟聚合物，其具有少量-COF型的不稳定端基，通过该方法获得的稳定的含氟聚合物或在燃料电池装置中使用稳定的含氟聚合物，膜 以及包含所述含氟聚合物的膜 - 电极组件。
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公开(公告)号：US20100087553A1
公开(公告)日：2010-04-08
申请号：US12445420
申请日：2007-10-16
CPC分类号： C08J5/2237 , C08F8/22 , C08F214/18 , C08F214/26 , C08J2327/18 , H01M8/1023 , H01M8/1025 , H01M8/1039 , H01M8/1072 , H01M2300/0082 , Y02P70/56
摘要： The invention pertains to a process for stabilizing a semi-crystalline fluoropolymer comprising ion exchange groups, said process comprising: suspending at least one semi-crystalline fluoropolymer having ion exchange groups [polymer (I)] in at least one fluorinated organic dispersing medium [medium (M)] so as to obtain a dispersion (D) of polymer (I) in a dispersing medium (M), contacting said dispersion (D) with fluorine under irradiation with U.V. radiation so as to obtain a stabilized polymer. Still objects of the invention arc a stable semi-crystalline fluoropolymer as above defined having a low amount of unstable ends groups of —COF type, the use of the stabilized fluoropolymer obtained by the process or of the stable fluoropolymer in fuel cells devices, a membrane and a membrane-electrode assembly comprising said fluoropolymers.
摘要翻译： 本发明涉及一种稳定包含离子交换基团的半结晶含氟聚合物的方法，所述方法包括：在至少一种氟化有机分散介质[介质中]悬浮至少一种具有离子交换基团[聚合物（I）]的半结晶含氟聚合物 （M）]，以获得分散介质（M）中聚合物（I）的分散体（D），使所述分散体（D）与氟在UV照射下接触 辐射以获得稳定的聚合物。 本发明的另一个目的是将如上定义的稳定的半结晶含氟聚合物定义为具有少量-COF型不稳定端基，通过该方法获得的稳定的含氟聚合物或在燃料电池装置中稳定的含氟聚合物的使用，膜 以及包含所述含氟聚合物的膜 - 电极组件。
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