Atom or group transfer radical polymerization
    5.
    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:US07678869B2

    公开(公告)日:2010-03-16

    申请号:US11430216

    申请日:2006-05-08

    IPC分类号: C08F4/00 C08F293/00

    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。

    Preparation of novel Homo- and copolymers using atom transfer radical
polymerization
    8.
    发明授权
    Preparation of novel Homo- and copolymers using atom transfer radical polymerization 失效
    使用原子转移自由基聚合制备新型均聚物和共聚物

    公开(公告)号:US6124411A

    公开(公告)日:2000-09-26

    申请号:US395201

    申请日:1999-09-14

    摘要: The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architecture and narrow polydispersity index, in the presence of an initiating system comprising (i) an initiator having a radically transferrable atom or group, (ii) a transition metal compound, and (iii) a ligand; the present invention is also directed to the synthesis of a macromolecule having at least two halogen groups which can be used as a macroinitiator component (i) to subsequently form a block or graft copolymer by an atom or group transfer radical polymerization process; the present invention is also directed to a process of atom or group transfer radical polymerization for the synthesis of a branched or hyperbranched polymer; in addition, the present invention is directed to a process of atom or group transfer radical polymerization for the synthesis of a macroinitiator which can subsequently be used to produce a block or graft copolymer.

    摘要翻译: 本发明涉及用于合成新型均聚物或嵌段或接枝共聚物的原子(或基团)转移自由基聚合方法,任选地含有至少一个极性基团,具有明确的分子结构和窄的多分散性指数 起始系统的存在,包括(i)具有可自由基转移的原子或基团的引发剂,(ii)过渡金属化合物和(iii)配体; 本发明还涉及具有至少两个卤素基团的大分子的合成,其可以用作大分子引发剂组分(i),随后通过原子或基团转移自由基聚合方法形成嵌段或接枝共聚物; 本发明还涉及用于合成支链或超支化聚合物的原子或基团转移自由基聚合方法; 此外,本发明涉及用于合成大分子引发剂的原子或基团转移自由基聚合的方法,其可随后用于制备嵌段或接枝共聚物。

    Catalytic processes for the controlled polymerization of free radically (co)polymerizable monomers and functional polymeric systems prepared thereby
    9.
    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。