公开(公告)号：US5338823A

公开(公告)日：1994-08-16

申请号：US987353

申请日：1992-12-07

申请人： James M. Tour ,  Eric B. Stephens

发明人： James M. Tour ,  Eric B. Stephens

IPC分类号： C08G61/10 ,  C08G61/00

CPC分类号： C08G61/10 ,  C08G2261/312

摘要： Poly(phenylene) that is substantially free of insoluble material is prepared by the polymerization of a lithioarylhalide compound in the presence of a polar aprotic compound such as hexamethylphosphoramide, N,N,N',N'-tetramethylethylenediamine or hexamethylphosphorous triamide. The preferred reaction involves the polymerization of 1-bromo-4-lithiobenzene in the presence of hexamethylphosphoramide. The 1-bromo-4-lithiobenzene may be synthesized by reacting 1,4-dibromobenzene with t-butyllithium. These same types of reactions can also be used to synthesis other benzenoid polymers.

摘要翻译： 通过在极性非质子化合物如六甲基磷酰胺，N，N，N'，N'-四甲基乙二胺或六甲基磷酸三酰胺的存在下聚合，制备基本上不含不溶物的聚（亚苯基）。 优选的反应涉及在六甲基磷酰胺存在下1-溴-4-亚硫基苯的聚合。 1-溴-4-亚硫基苯可以通过使1,4-二溴苯与叔丁基锂反应来合成。 这些相同类型的反应也可用于合成其它苯类聚合物。

公开(公告)号：US5334668A

公开(公告)日：1994-08-02

申请号：US13744

申请日：1993-02-04

申请人： James M. Tour ,  Eric Stephens ,  Joanna F. Davis

发明人： James M. Tour ,  Eric Stephens ,  Joanna F. Davis

IPC分类号： C04B35/524 ,  C08G61/10

CPC分类号： C04B35/524 ,  C08G2261/312

摘要： Polymeric carbon can be formed by a method comprising the steps of(a) polymerizing 1-bromo-4-lithiobenzene to form a brominated polyphenylene wherein the ratio of brominated to non-brominated residues in the polymer is 1:5 or greater;(b) functionalizing the brominated polyphenylene to replace the bromide groups with a substituted or unsubstituted acetylene group; and(c) heating the functionalized polymer to a temperature of 900.degree. C. to form polymeric carbon. Preferably, the brominated polyphenylene is formed in an ethereal solvent such as tetrahydrofuran and then functionalized using a palladium catalyst and a copper catalyst. When the acetylene substituent is phenylacetylene, the product of the method is glassy carbon.

摘要翻译： 聚合碳可以通过包括以下步骤的方法形成：（a）聚合1-溴-4-锂苯以形成溴化聚亚苯基，其中聚合物中溴化与非溴化残基的比例为1:5或更大; （b）用取代或未取代的乙炔官能化溴代聚亚苯取代溴基; 和（c）将官能化聚合物加热到900℃的温度以形成聚合碳。 溴代聚亚苯基优选在醚溶剂如四氢呋喃中形​​成，然后使用钯催化剂和铜催化剂进行官能化。 当乙炔取代基是苯基乙炔时，该方法的产物是玻璃碳。

公开(公告)号：US5236686A

公开(公告)日：1993-08-17

申请号：US746714

申请日：1991-08-19

申请人： James M. Tour ,  Eric Stephens ,  Joanna F. Davis

发明人： James M. Tour ,  Eric Stephens ,  Joanna F. Davis

IPC分类号： C04B35/524

CPC分类号： C04B35/524 ,  C08G2261/312

摘要： Polymeric carbon can be formed by a method comprising the steps of(a) polymerizing 1-bromo-4-lithiobenzene to form a brominated polyphenylene wherein the ratio of brominated to non-brominated residues in the polymer is 1:5 or greater;(b) functionalizing the brominated polyphenylene to replace the bromide groups with a substituted or unsubstituted acetylene group; and(c) heating the functionalized polymer to a temperature of 900.degree. C. to form polymeric carbon. Preferably, the brominated polyphenylene is formed in an ethereal solvent such as tetrahydrofuran and then functionalized using a palladium catalyst and a copper catalyst. When the acetylene substituent is phenylacetylene, the product of the method is glassy carbon.

公开(公告)号：US5171911A

公开(公告)日：1992-12-15

申请号：US700626

申请日：1991-05-15

申请人： James M. Tour ,  Shekar L. Pendalwar ,  Joel P. Cooper

发明人： James M. Tour ,  Shekar L. Pendalwar ,  Joel P. Cooper

IPC分类号： B01J23/44 ,  B01J31/06 ,  B01J31/12

CPC分类号： B01J31/126 ,  B01J2231/645 ,  B01J2231/70 ,  B01J23/44

摘要： The present invention relates to ceramic materials containing a homogeneous dispersion of metal particles, particularly sol-gel ceramic materials, a method of preparing the same, and processes for hydrogenating and oxidizing organic compounds using the same.

摘要翻译： 本发明涉及含有金属颗粒均匀分散体，特别是溶胶 - 凝胶陶瓷材料的陶瓷材料，其制备方法，以及使用该陶瓷材料氢化和氧化有机化合物的方法。