Modification of surfaces with polymers
    8.
    发明授权
    Modification of surfaces with polymers 有权
    用聚合物改性表面

    公开(公告)号:US08349410B2

    公开(公告)日:2013-01-08

    申请号:US11894010

    申请日:2007-08-17

    摘要: A polymer formed by controlled radical polymerization includes groups that can be modified after controlled radical polymerization to form a radical. The polymer can be the reaction product of a controlled radical polymerization of radically polymerizable monomers, wherein at least one of the radically polymerizable monomers includes at least one group that can be modified after the controlled radical polymerization to form a radical. A compound includes a first group that is stimulated upon application of energy to the molecule to tether the molecule to a surface or to another polymer chain and a second group comprising a controlled radical polymerization initiator functionality. A block copolymer includes at least a first segment to impart a predetermined functionality to a target surface and at least a second segment including functional groups to interact with the targeted surface to attach the block copolymer to the surface. The first segment can free of functional groups that interact with the surface to attach the block copolymer to the surface.

    摘要翻译: 通过受控自由基聚合形成的聚合物包括可以在受控自由基聚合反应形成基团之后进行改性的基团。 聚合物可以是可自由基聚合的单体的受控自由基聚合的反应产物,其中至少一种可自由基聚合的单体包括至少一个可在受控自由基聚合之后修饰以形成基团的基团。 化合物包括在向分子施加能量以将分子束缚至表面或另一聚合物链时被刺激的第一组和包含受控自由基聚合引发剂官能团的第二组。 嵌段共聚物包括至少一个赋予靶表面预定官能度的第一链段和至少一个包含官能团的第二链段以与目标表面相互作用以将该嵌段共聚物连接到该表面上。 第一段可以没有与表面相互作用的官能团,以将嵌段共聚物附着在表面上。

    Atom transfer radical polymerization in microemulsion and true emulsion polymerization processes
    10.
    发明申请
    Atom transfer radical polymerization in microemulsion and true emulsion polymerization processes 有权
    原子转移自由基聚合在微乳液和真乳液聚合过程中

    公开(公告)号:US20090176951A1

    公开(公告)日:2009-07-09

    申请号:US11990836

    申请日:2006-08-23

    IPC分类号: C08F2/22

    摘要: The invention is directed to a microemulsion polymerization comprising adding a polymerization catalyst precursor, such as a transition metal complex in the higher of two accessible oxidation states, an ATRP initiator, and an organic solvent to an aqueous solution to form an emulsion. Radically polymerizable monomers and a reducing agent may then be added to the emulsion. The reducing agent converts the catalyst precursor to a catalyst for polymerization of the first monomer from the initiator. In certain embodiments the organic solvent may comprise radically polymerizable monomers. The aqueous solution may comprise a surfactant. Further embodiments are directed to an ah initio polymerization process comprising adding a polymerization catalyst precursor; an ATRP initiator, and an organic solvent to an aqueous solution to form an emulsion, wherein the organic solvent comprises second radically polymerizable monomers, adding a reducing agent to convert the catalyst precursor to a catalyst for polymerization of the first radically polymerizable monomer from the initiator; and adding first radically polymerizable monomers to the emulsion.

    摘要翻译: 本发明涉及一种微乳液聚合方法,其中包括将聚合催化剂前体,例如两种可接近的氧化态中较高的过渡金属络合物,ATRP引发剂和有机溶剂加入到水溶液中以形成乳液。 然后将可自由基聚合的单体和还原剂加入到乳液中。 还原剂将催化剂前体转化为第一单体从引发剂聚合的催化剂。 在某些实施方案中,有机溶剂可以包含可自由基聚合的单体。 水溶液可以包含表面活性剂。 进一步的实施方案涉及一种开始聚合方法,包括加入聚合催化剂前体; ATRP引发剂和有机溶剂加入到水溶液中以形成乳液,其中有机溶剂包括第二自由基聚合单体,加入还原剂以将催化剂前体转化为用于从引发剂聚合第一可自由基聚合单体的催化剂 ; 并将第一可自由基聚合的单体加入到乳液中。