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    Process for the preparation of high molecular weight, optionally branched polyarylene sulphides
    4.
    发明授权
    Process for the preparation of high molecular weight, optionally branched polyarylene sulphides 失效
    制备高分子量的方法，选择性分支的聚氨酯硫化物

    公开(公告)号：US5118786A

    公开(公告)日：1992-06-02

    申请号：US653990

    申请日：1991-02-11

    申请人： Edgar Ostlinning ,  Karsten Idel ,  Ludwig Bottenbruch

    发明人： Edgar Ostlinning ,  Karsten Idel ,  Ludwig Bottenbruch

    IPC分类号： C08G75/025 ,  C08G75/06

    CPC分类号： C08G75/025

    摘要： The invention relates to an anhydrous process for the preparation of high molecular weight, optionally branched polyarylene sulphides. These can be prepared in a polar organic solvent in the absence of water by reaction of dihalogenoaromatics with sodium sulphides and bisulphide or potassium sulphides and bisulphide in the presence of catalysts in a polar organic solvent.

    摘要翻译： 本发明涉及一种用于制备高分子量，任选支化的聚亚芳基硫醚的无水方法。 这些可以在极性有机溶剂中通过在极性有机溶剂中在催化剂存在下，通过二卤代芳族化合物与硫化钠和二硫化物或硫化钾和二硫化氢的反应在无水存在下制备。

    Process for the preparation of polyarylene sulphides
    8.
    发明授权
    Process for the preparation of polyarylene sulphides 失效
    聚亚芳基硫醚的制备方法

    公开(公告)号：US4362864A

    公开(公告)日：1982-12-07

    申请号：US263421

    申请日：1981-05-14

    申请人： Karsten Idel ,  Dieter Freitag ,  Ludwig Bottenbruch ,  Josef Merten

    发明人： Karsten Idel ,  Dieter Freitag ,  Ludwig Bottenbruch ,  Josef Merten

    IPC分类号： C08G75/02 ,  C08G75/06 ,  C08L81/02 ,  C08G75/14

    CPC分类号： C08G75/0254 ,  C08G75/0231

    摘要： A process for preparing a polyarylene sulphide which comprises reacting(a) dihalogenobenzene consisting of 50 to 100 mol % of a compound of the formula ##STR1## or a compound of the formula ##STR2## or a mixture thereof and of 0 to 50 mol % of a compound of the formula ##STR3## wherein X is halogen and each R is selected from the group consisting of hydrogen, alkyl having 1 to 20 carbon atoms, cycloalkyl having 5 to 20 carbon atoms, aryl having 6 to 24 carbon atoms, alkaryl having 7 to 24 carbon atoms and aralkyl having 7 to 24 carbon atoms with the proviso that at least one R is other than hydrogen and(b) 0 to 3.0 mol % based on the dihalogenobenzene content of a polyhalogeno aromatic of the formulaArX.sub.n (IV) wherein Ar is an aromatic or heterocyclic radical with 6 to 24 carbon atoms having at least 3 free valencies, X is halogen and n is .gtoreq. 3 with(c) an alkyl metal sulphide in(d) a polar solvent in the presence of(e) 0.05-2.0 mol of alkali metal fluoride per mol of alkali metal sulphide,for a polycondensation time of up to 30 hours and at a polycondensation temperature of between 160.degree. and 295.degree. C., the molar ratio of (a) to (c) being in the range from 0.85:1 to 1.15:1 and the molar ratio of (c) to (d) being in the range of from 1:2 to 1:15.

    摘要翻译： 一种制备聚亚芳基硫醚的方法，其包括使（a）由50至100mol％的式（I）化合物或式IIa化合物或其混合物组成的二卤代苯和 0至50摩尔％的式（III）化合物，其中X为卤素且每个R选自氢，具有1至20个碳原子的烷基，具有5至20个碳原子的环烷基， 具有6至24个碳原子的芳基，具有7至24个碳原子的烷芳基和具有7至24个碳原子的芳烷基，条件是至少一个R不是氢，和（b）基于二卤代苯含量为0-3.0mol％ 式ArXn（IV）的多卤代芳族化合物，其中Ar是具有至少3个自由价的6至24个碳原子的芳族或杂环基，X是卤素，n是≥3，（c）烷基金属硫化物 （d）在（e）0.05-2.0mol碱金属氟化物存在下，每摩尔的极性溶剂 碱金属硫化物，缩聚时间长达30小时，缩聚温度在160〜295℃之间，（a）与（c）的摩尔比在0.85:1-1.15:1的范围内， 1和（c）至（d）的摩尔比在1:2至1:15的范围内。