Method for synthesizing a specific, surface-bound polymer uniformly over an element of a molecular array
    3.
    发明授权
    Method for synthesizing a specific, surface-bound polymer uniformly over an element of a molecular array 失效
    用于在分子阵列的元素上均匀地合成特定的表面结合聚合物的方法

    公开(公告)号:US06300137B1

    公开(公告)日:2001-10-09

    申请号:US09300873

    申请日:1999-04-28

    IPC分类号: G01N3300

    摘要: A method for specifically and uniformly synthesizing desired polymers within molecular array elements. Droplets containing a reactive monomer are successively applied to the elements of a molecular array in order to synthesize a substrate-bound polymer. Application of an initial droplet, having a first volume, defines the position and size of a molecular array element. Subsequent droplets are applied, to add successive reactive monomers to growing nascent polymers within the molecular array element, with covering volumes so that, even when application of the subsequent droplets is misregistered, the entire surfaces of the elements of the molecular array are exposed to the subsequently applied droplets. Following application of initial droplets, the surface of the molecular array is exposed to a solution containing a very efficient capping agent in order to chemically cap any unreacted nascent growing polymers and any unreacted substrate molecules.

    摘要翻译: 在分子阵列元素内特异性且均匀地合成所需聚合物的方法。 含有反应性单体的液滴连续地施加到分子阵列的元件上,以便合成底物结合的聚合物。 具有第一体积的初始液滴的应用限定了分子阵列元件的位置和尺寸。 随后的液滴被施加,以将连续的反应性单体添加到分子阵列元件内的生长中的新生聚合物,具有覆盖体积,使得即使当随后的液滴的应用被不对准时,分子阵列的元素的整个表面暴露于 随后应用液滴。 在施加初始液滴之后,将分子阵列的表面暴露于含有非常有效的封端剂的溶液中,以便化学封装任何未反应的新生生长的聚合物和任何未反应的底物分子。

    S,S-di-(tertiary alkyl) thiophosphonate insecticides
    5.
    发明授权
    S,S-di-(tertiary alkyl) thiophosphonate insecticides 失效
    S,S-二(叔烷基)硫代膦酸酯类杀虫剂

    公开(公告)号:US4752604A

    公开(公告)日:1988-06-21

    申请号:US879044

    申请日:1986-07-03

    CPC分类号: A01N57/20 C07F9/4075

    摘要: Compounds having the formula ##STR1## in which R is methyl or ethyl, Y is sulfur or oxygen, and R.sub.1 and R.sub.2 are the same or different tertiary alkyl groups each having from 4 to 6 carbon atoms, are insecticides and nematicides, especially for control of soil insects and nematodes.Symmetrical compounds (R.sub.1 .dbd.R.sub.2) may be prepared by reaction of an alkali metal mercaptide with an alkyl (thio) phosphonic dihalide. The alkali metal mercaptide may be prepared by reaction of a tertiary alkyl mercaptan with an alkali metal or alkali metal hydride.

    摘要翻译: 具有式“IMAGE”的化合物,其中R是甲基或乙基,Y是硫或氧,R 1和R 2是相同或不同的具有4至6个碳原子的叔烷基,是杀虫剂和杀线虫剂,特别是用于对照 的土壤昆虫和线虫。 对称化合物(R1 = R2)可以通过碱金属硫醇盐与烷基(硫代)膦酸二卤化物的反应来制备。 碱金属硫醇盐可以通过叔烷基硫醇与碱金属或碱金属氢化物的反应来制备。