Catalytic processes for the controlled polymerization of free radically (co)polymerizable monomers and functional polymeric systems prepared thereby
    2.
    发明授权
    Catalytic processes for the controlled polymerization of free radically (co)polymerizable monomers and functional polymeric systems prepared thereby 有权
    自由基(共)可聚合单体和由此制备的官能聚合物体系的受控聚合的催化方法

    公开(公告)号:US07825199B1

    公开(公告)日:2010-11-02

    申请号:US09534827

    申请日:2000-03-23

    IPC分类号: C08F4/00 C08F4/44 C08F4/06

    摘要: Further improvements have been made in processes for controlled polymerization of free radically (co)polymerizable monomers mediated by a transition metal complex participating in a redox reaction which involves transfer of a radically transferable atom or group to and from an initiator or dormant polymer and the growing active polymer chain ends. Two improvements involve the choice of counterion in the transition metal complex. In one improvement the transition metal is held in close conjunction with a solid support through interaction with a counterion directly attached to the support. This cognition also allows for improvements in catalyst utilization including catalyst recovery and recycle. In another improvement, particularly suitable for controlled polymerization of certain monomers with an expanded range of transition metals, the function of counterion and ligand in the development of the transition metal based catalyst is superseded by use of salt containing a soluble organic counterion. These and other process improvements have been employed to prepare an extended range of novel polymeric materials and novel processes for the preparation of functional polymers including a novel catalytic Atom Transfer Coupling Reaction.

    摘要翻译: 在由参与氧化还原反应的过渡金属络合物介导的自由基(共)可聚合单体的控制聚合方法中进行了进一步的改进,其涉及将可自由基转移的原子或基团转移到引发剂或休眠聚合物和从引发剂或休眠聚合物转移,并且生长 活性聚合物链末端。 两个改进涉及在过渡金属络合物中选择抗衡离子。 在一个改进中,通过与直接连接到载体上的抗衡离子相互作用,过渡金属与固体支持物紧密结合。 这种认知还允许催化剂利用率的改善,包括催化剂回收和再循环。 在另一个改进中,特别适用于具有扩展范围的过渡金属的某些单体的受控聚合,通过使用含有可溶性有机抗衡离子的盐来代替在过渡金属基催化剂的开发中的抗衡离子和配体的功能。 已经采用这些和其它方法改进来制备扩展范围的新型聚合物材料和用于制备功能性聚合物的新方法,包括新的催化原子转移偶联反应。

    Modification of surfaces with polymers
    5.
    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
    8.
    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。

    Atom or group transfer radical polymerization
    9.
    发明授权
    Atom or group transfer radical polymerization 有权
    原子或基团转移自由基聚合

    公开(公告)号:US07125938B2

    公开(公告)日:2006-10-24

    申请号:US10781061

    申请日:2004-02-18

    IPC分类号: C08F4/04 C08F4/34 C08F4/40

    摘要: A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from the group of cationic polymerization, anionic polymerization, conventional free radical polymerization, metathesis, ring opening polymerization, cationic ring opening polymerization, and coordination polymerization to form a macroinitiator comprising an ATRP initiating site and further initiating an ATRP polymerization of radically polymerizable monomers using the macroinitiator comprising an ATRP initiating site. Novel block copolymers may be formed by the disclosed method.

    摘要翻译: 一种聚合方法,包括使用用ATRP起始位点官能化的引发剂引发单体的第一次聚合,其中第一聚合选自阳离子聚合,阴离子聚合,常规自由基聚合,复分解,开环聚合,阳离子开环 聚合和配位聚合以形成包含ATRP起始位点的大分子引发剂,并且使用包含ATRP起始位点的大分子引发剂进一步引发自由基聚合单体的ATRP聚合。 可以通过所公开的方法形成新的嵌段共聚物。