Method for forming polythiophosphazene macromolecules
    31.
    发明授权
    Method for forming polythiophosphazene macromolecules 失效
    形成聚硫磷腈大分子的方法

    公开(公告)号:US5101003A

    公开(公告)日:1992-03-31

    申请号:US474411

    申请日:1990-02-02

    IPC分类号: C08G79/02

    CPC分类号: C08G79/02

    摘要: The synthesis of the first examples of a new class of inorganic macromolecules, the polythiophosphazenes, is reported. When heated at 90.degree. C., the cyclothiophosphazene N.sub.3 P.sub.2 SCl.sub.5 undergoes ring-opening polymerization to yield the high polymeric polythiophosphazene [N.sub.3 P.sub.2 SCl.sub.5 ].sub.n. The latter functions as a reactive macromolecular intermediate and undergoes halogen replacement with sodium phenoxide and sodium o-phenylphenoxide to afford the polymers [N.sub.3 P.sub.2 S(OPh).sub.5 ].sub.n and [N.sub.3 P.sub.2 S(OC.sub.6 H.sub.4 Ph--o).sub.3.25 Cl.sub.1.75 ].sub.n, respectively.

    摘要翻译: 报道了一类新的无机大分子,即聚硫代磷腈的合成。 当在90℃下加热时,环硫基磷腈N 3 P 2 SCl 5进行开环聚合,得到高分子聚硫代磷腈[N 3 P 2 SCl 5] n。 后者用作反应性大分子中间体,并用苯酚钠和邻苯基苯酚钠进行卤素置换,分别得到聚合物[N 3 P 2 S(OPh)5] n和[N 3 P 2 S(OC 6 H 4 Ph-o)3.25 Cl1.75] n。

    Ionically cross-linkable polyphosphazene: poly(bis(carboxylatophenoxy)
phosphazene) and its hydrogels and membranes
    32.
    发明授权
    Ionically cross-linkable polyphosphazene: poly(bis(carboxylatophenoxy) phosphazene) and its hydrogels and membranes 失效
    可离子交联的聚磷腈:聚(双(羧基苯氧基)磷腈)及其水凝胶和膜

    公开(公告)号:US5053451A

    公开(公告)日:1991-10-01

    申请号:US467821

    申请日:1990-01-19

    IPC分类号: B01D71/72 C08G79/02

    CPC分类号: C08G79/025 B01D71/72

    摘要: Hexachlorocyclotriphosphazene and poly(dichlorophosphazene) react with the sodium salt of ethyl p-hydroxybenzoate to give small molecule cyclic and high polymeric phosphazenes with aryloxy ester side groups; reaction of these compounds with potassium tert-butoxide brings about complete hydrolysis of the ester groups to yielding aqueous media-soluble, carboxylic acid bearing cyclic and high polymeric phosphazenes; the carboxylic acid bearing high polymer formed ionic cross-links when treated in aqueous media with salts of di- or trivalent cations yield hydrogels and membranes. The cross-linked gels were stable in neutral or strongly acidic aqueous media, but the cross-linking process was reversed in basic aqueous solutions of excess monovalent cations.

    摘要翻译: 六氯环三磷腈和聚(二氯磷腈)与对羟基苯甲酸乙酯的钠盐反应,得到具有芳氧基酯侧基的小分子环状和高聚磷腈; 这些化合物与叔丁醇钾的反应导致酯基的完全水解以产生含水介质可溶的含羧酸的环状和高聚磷腈; 当在水性介质中用二价或三价阳离子盐处理时,含羧酸的高聚物形成离子交联产生水凝胶和膜。 交联凝胶在中性或强酸性水性介质中稳定,但在过量一价阳离子的碱性水溶液中交联过程相反。

    Pyridine phosphonitrilic halide trimer process
    33.
    发明授权
    Pyridine phosphonitrilic halide trimer process 失效
    吡啶膦酰氯三聚物工艺

    公开(公告)号:US4656017A

    公开(公告)日:1987-04-07

    申请号:US756799

    申请日:1985-07-19

    IPC分类号: C01B21/098 C01B25/10

    CPC分类号: C01B21/098 C01B21/0986

    摘要: Cyclic phosphonitrilic halides are formed rapidly and in high yield in a controllable multi-step process including the step of reacting a nitrogenous base (e.g. pyridine) with a phosphorus tetrahalide (e.g. phosphorus pentachloride) in a suitable inert liquid reaction medium (e.g. monochlorobenzene) to form a complex and in a subsequent step reacting this complex with an ammonium halide (e.g. ammonium chloride) at a temperature above about 90.degree. C. up to the reflux temperature of the reaction medium to form cyclic phosphonitrilic halides, mainly trimer.

    摘要翻译: 在可控制的多步骤方法中快速和高产率地形成环状次膦酰卤,其包括使氮碱(例如吡啶)与四卤化磷(例如五氯化磷)在合适的惰性液体反应介质(例如一氯苯)中反应至 形成复合物,并且在随后的步骤中,使该配合物与卤化铵(例如氯化铵)在高于约90℃的温度下反应直到反应介质的回流温度,以形成主要是三聚体的环状次膦酰卤。

    Anesthetic polyorganophosphazenes
    34.
    发明授权
    Anesthetic polyorganophosphazenes 失效
    麻醉聚有机膦腈

    公开(公告)号:US4495174A

    公开(公告)日:1985-01-22

    申请号:US390345

    申请日:1982-06-21

    摘要: A long-acting, local anesthetic, comprising a polymeric phosphazene backbone, and 2-amino-4-picoline radical having local anesthetic activity and an amino functional group on the ring of said radical through which said radical is covalently attached to the phosphazene backbone by a phosphorous-nitrogen single bond is disclosed along with medicaments containing such anesthetics.

    摘要翻译: 包含聚合磷腈骨架的长效局部麻醉剂和具有局部麻醉活性的2-氨基-4-甲基吡啶基和所述基团的环上的氨基官能团,所述基团通过其将所述基团共价连接到磷腈骨架上 公开了含有这种麻醉剂的药物的磷 - 氮单键。

    pH dependent membrane diffusion
    37.
    发明授权
    pH dependent membrane diffusion 失效
    pH依赖性膜扩散

    公开(公告)号:US06558546B2

    公开(公告)日:2003-05-06

    申请号:US10001899

    申请日:2001-11-01

    IPC分类号: B01D3900

    摘要: A pore plugging material, for pH dependent membrane diffusion, in which cyclic olefins having phosphazene-functional moieties provide predictable erosion properties when used to plug pores in separation barriers and other porous membranes. Specific properties of the polymers are dependent on several factors, including molecular weight and identity of side groups attached to the phosphazene moiety. However, as a class, phosphazene-functional cyclic olefins provide both predictable erodibility and uniformly benign hydrolysis products and are, therefore, uniquely suitable as pore plugging polymers for separation barriers and membranes of all kinds. The invention, therefore, embraces the provision of a pH-sensitive erodible pore plugging material for pores in separation barriers and membranes of all kinds.

    摘要翻译: 用于pH依赖性膜扩散的孔堵塞材料,其中具有磷腈官能团的环状烯烃当用于堵塞分离屏障和其它多孔膜中的孔时提供可预测的侵蚀性质。 聚合物的具体性质取决于几个因素,包括连接于磷腈部分的侧基的分子量和同一性。 然而,作为一类,磷腈官能的环烯烃提供可预测的可蚀性和均匀的良性水解产物,因此,其独特地适用于分离屏障和各种膜的孔堵聚合物。 因此,本发明包括为分离屏障和各种膜中的孔提供用于pH敏感的可侵蚀孔隙堵塞材料。