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    • 3. 发明授权
    • Processing of thermoset rigid-rod molecular composites
    • 热固性刚性棒分子复合材料的加工
    • US05998550A
    • 1999-12-07
    • US126568
    • 1998-07-30
    • Fred E. ArnoldNarayanan VenkatasubramanianThuy D. DangDerrick R. Dean
    • Fred E. ArnoldNarayanan VenkatasubramanianThuy D. DangDerrick R. Dean
    • C08G73/18C08G73/22C08G75/32C08L79/04C08L79/06
    • C08G73/22C08G73/18C08G75/32
    • Molecular dispersions of rigid-rod polybenzobisazole polymer/copolymer in thermosetting matrices in a weight ratio of about 1:99 to 50:50 are prepared by dissolving the rigid-rod polymer in an alcoholic or aprotic solvent, dissolving the thermosetting polymer in an alcoholic or aprotic solvent, combining the two solutions and recovering the resulting molecular composite from the combined solution. These molecular dispersions consist essentially of rigid-rod polybenzobisazole polymer/copolymer having sulfonic acid groups pendant to the polymer/copolymer backbone and thermosetting polymers selected from the group consisting of iminobis(N-propyl-2-phenylethynyl-phthalimide), N-ethyl-(2,6-di-benzocyclobutenoxy)benzylamine, iminobis(N-propylnadic imide) and difunctional benzoxazine monomers of the formula ##STR1## wherein X is a single bond, --CO-- or --C(CH.sub.3).sub.2 -- and Q is --CH.sub.3 or --C.sub.6 H.sub.5.
    • 通过将刚性棒状聚合物溶解在酒精或非质子溶剂中,将热固性聚合物溶解在酒精或酒精中,制备刚性棒状聚苯并双酚聚合物/共聚物在热固性基质中的重量比约1:99至50:50的分散体 非质子溶剂,结合两种溶液并从组合溶液中回收得到的分子复合物。 这些分子分散体基本上由具有垂直于聚合物/共聚物主链的磺酸基的刚性棒聚苯并双酚聚合物/共聚物和选自亚氨基双(N-丙基-2-苯基乙炔基 - 邻苯二甲酰亚胺),N-乙基 - (2,6-二苯并环丁烯氧基)苄胺,亚氨基双(N-丙基酰胺酰亚胺)和下式的双官能苯并恶嗪单体其中X为单键,-CO-或-C(CH 3)2 - 且Q为-CH 3或 - C6H5。
    • 4. 发明授权
    • Alcohol soluble benzazole polymers
    • 醇溶性苯唑聚合物
    • US5492996A
    • 1996-02-20
    • US393590
    • 1995-02-21
    • Thuy D. DangJom P. ChenFred E. Arnold
    • Thuy D. DangJom P. ChenFred E. Arnold
    • C08G73/22C08G75/32C08G75/00
    • C08G73/22C08G75/32
    • Alcohol-soluble aromatic heterocyclic polymers having repeating units of the formula: ##STR1## wherein X is --O-- or --S--, and R is selected from the group consisting of: ##STR2## and R' is selected from the group consisting of alkyl having 1 to 5 carbon atoms, alkaryl having 7 to 12 carbon atoms, aralkyl having 7 to 12 carbon atoms and substituted aromatic having 1 to 3 substituent groups.The alcohol-soluble polymers may be used for fabricating organic/inorganic hybrid composites with metal alkoxides M(OQ).sub.v, wherein M is Si, Ti, Al or the like and Q is a lower alkyl group. These polymers can also be used to coat materials or substrates which are susceptible to attack by highly corrosive acids. On drying, the ionic bond between the trialkylamine and the sulfo group is broken and the polymer reverts to the parent structure, thereby leaving a polymer coating. Yet further, the original amine can be exchanged with a less volatile amine or an amine having a desired functionality. After removal of the solvent, the resulting material is mono-dispersed and stable.
    • 具有下式的重复单元的醇溶性芳族杂环聚合物:其中X是-O-或-S-,R选自:IMA和R'选自: 具有1至5个碳原子的烷基,具有7至12个碳原子的烷芳基,具有7至12个碳原子的芳烷基和具有1至3个取代基的取代的芳族。 醇溶性聚合物可用于制备与金属醇盐M(OQ)v的有机/无机混合复合材料,其中M为Si,Ti,Al等,Q为低级烷基。 这些聚合物也可用于涂覆易受高腐蚀性酸侵蚀的材料或基材。 在干燥时,三烷基胺和磺基之间的离子键断裂,聚合物回到母体结构,从而留下聚合物涂层。 此外,原始胺可以与挥发较少的胺或具有所需官能度的胺交换。 除去溶剂后,所得物质是单分散的并且稳定。