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62 条记录 (耗时 0.035 秒)

    Polymerization using thionoester compounds as chain transfer agents
    31.
    发明授权
    Polymerization using thionoester compounds as chain transfer agents 失效
    使用硫代酯化合物作为链转移剂进行聚合

    公开(公告)号：US5739228A

    公开(公告)日：1998-04-14

    申请号：US493937

    申请日：1995-06-23

    申请人： Gordon Francis Meijs ,  Ezio Rizzardo

    发明人： Gordon Francis Meijs ,  Ezio Rizzardo

    IPC分类号： C08F2/38 ,  C08F2/02

    CPC分类号： C08F2/38

    摘要： A process for the production of low molecular weight polymers by free radical polymerization of one or more monomers in the presence of a chain transfer agent, wherein the chain transfer agent comprises one or more compounds of the general formula I ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group, or a group capable of activating the carbon-sulfur double bond towards free radical addition; and R.sup.2 represents an optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted saturated, unsaturated or aromatic carbocyclic or heterocyclic ring.

    摘要翻译： 一种在链转移剂存在下通过一种或多种单体的自由基聚合生产低分子量聚合物的方法，其中链转移剂包含一种或多种通式I烷基的化合物或能够 使碳 - 硫双键活化成自由基添加; 并且R 2表示任选取代的烷基，任选取代的烯基，任选取代的炔基或任选取代的饱和，不饱和或芳族碳环或杂环。

    Polymerization with living characteristics
    34.
    发明授权
    Polymerization with living characteristics 失效
    具有生活特性的聚合

    公开(公告)号：US07714075B1

    公开(公告)日：2010-05-11

    申请号：US09762833

    申请日：1997-07-03

    申请人： Tam Phuong Le ,  Graeme Moad ,  Ezio Rizzardo ,  San Hoa Thang

    发明人： Tam Phuong Le ,  Graeme Moad ,  Ezio Rizzardo ,  San Hoa Thang

    IPC分类号： C08L23/04

    CPC分类号： C08K5/38 ,  C07C327/36 ,  C07C329/00 ,  C07F9/4065 ,  C08F2/38 ,  C08F12/08 ,  C08F293/00 ,  C08F293/005 ,  C08L25/06

    摘要： This invention concerns a free radical polymerization process, selected chain transfer agents employed in the process and polymers made thereby, in which the process comprises preparing polymer of general Formula (A) and Formula (B) comprising contacting: (i) a monomer selected from the group consisting of vinyl monomers (of structure CH2═CUV), maleic anhydride, N-alkylmaleimide, N-arylmaleimide, dialkyl fumarate and cyclopolymerizable monomers; (ii) a thiocarbonylthio compound selected from Formula (C) and Formula (D) having a chain transfer constant greater than about 0.1; and (iii) free radicals produced from a free radical source; the polymer of Formula (A) being made by contacting (i), (ii) C and (iii) and that of Formula (B) by contacting (i), (ii) D, and (iii); and (iv) controlling the polydispersity of the polymer being formed by varying the ratio of the number of molecules of (ii) to the number of molecules of (iii); wherein Q, R, U, V, Z, Z′, m, p and q are as defined in the text.

    摘要翻译： 本发明涉及自由基聚合方法，该方法中使用的选择的链转移剂和由此制备的聚合物，其中该方法包括制备通式（A）和式（B）的聚合物，其包括使（i）选自 由乙烯基单体（结构为CH 2 = CUV），马来酸酐，N-烷基马来酰亚胺，N-芳基马来酰亚胺，富马酸二烷基酯和可环化聚合的单体组成的组; （ii）选自式（C）和式（D）的硫代羰基硫代化合物，其链转移常数大于约0.1; 和（iii）自由基产生的自由基; 式（A）的聚合物通过使（i），（ii）D和（iii）接触而使（i），（ii）C和（iii）与式（B） 和（iv）通过改变（ii）的分子数与（iii）的分子数之比来控制形成的聚合物的多分散性; 其中Q，R，U，V，Z，Z'，m，p和q如文中所定义。

    Catalytic polymerization process
    38.
    发明申请
    Catalytic polymerization process 有权
    催化聚合工艺

    公开(公告)号：US20050014911A1

    公开(公告)日：2005-01-20

    申请号：US10918772

    申请日：2004-08-13

    申请人： Graeme Moad ,  Ezio Rizzardo ,  Catherine Moad ,  Steven Ittel ,  Lech Wilczek ,  Alexei Gridnev

    发明人： Graeme Moad ,  Ezio Rizzardo ,  Catherine Moad ,  Steven Ittel ,  Lech Wilczek ,  Alexei Gridnev

    IPC分类号： C08F2/00 ,  C08F2/38 ,  C08F290/04 ,  C08G83/00

    CPC分类号： C08F290/04 ,  C08F2/38 ,  C08G83/003

    摘要： This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.

    摘要翻译： 本发明涉及一种用于控制至少两种不饱和单体的共聚物结构的方法，所述共聚物在含钴链转移剂存在下通过自由基聚合制备，包括分子量分支控制和乙烯基端基终止 通过改变单体摩尔比的变量，它们的相对链转移常数，聚合温度和转化度和钴链转移剂的量中的至少一个变量; 和由此制成的聚合物。

    Microgels and process for their preparation
    39.
    发明授权
    Microgels and process for their preparation 有权
    微凝胶及其制备方法

    公开(公告)号：US06646055B2

    公开(公告)日：2003-11-11

    申请号：US09969706

    申请日：2001-10-03

    申请人： Charles T. Berge ,  Michael Fryd ,  Jeffrey W. Johnson ,  Graeme Moad ,  Ezio Rizzardo ,  Christopher Scopazzi ,  San Hoa Thang

    发明人： Charles T. Berge ,  Michael Fryd ,  Jeffrey W. Johnson ,  Graeme Moad ,  Ezio Rizzardo ,  Christopher Scopazzi ,  San Hoa Thang

    IPC分类号： C08F238

    CPC分类号： C08F265/04 ,  C08F290/04 ,  C08F290/061 ,  C08F293/00 ,  C08F293/005 ,  Y10S514/944

    摘要： A process for preparing microgel(s) that uses a wide range of activatable prepolymers. In the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator. The process comprises: I) introducing mono-olefinic monomer, catalyst, and initiator into a reactor in the absence of multi-olefinic monomer and producing an activatable prepolymer, component B; II) contacting the product of I) with multi-olefinic monomer to produce components A and C, optionally in the presence of additional initiator; also optionally in the presence of additional mono-olefinic monomer and initiator. The ratio of components A/(B+C) can be controlled by varying the mole ratio of The Component B/multi-olefinic monomer from 0.05/1 up to 5/1, by decreasing the mole ratio to increase the ratio of A/(B+C), and increasing the mole ratio to decrease the ratio of A/(B+C).

    摘要翻译： 一种制备使用多种可活化预聚物的微凝胶的方法。 在该方法中，交联组分A和可溶组分B和C的聚合物组合物在催化剂和引发剂存在下由单烯烃和多烯属单体形成。 该方法包括：I）在不存在多烯属单体的情况下将单烯烃单体，催化剂和引发剂引入反应器，并产生可活化的预聚物组分B; II）使I）的产物与多烯属单体接触， 产生组分A和C，任选地在另外的引发剂的存在下; 也可任选在另外的单烯属单体和引发剂的存在下进行。 组分A /（B + C）的比例可以通过将组分B /多烯烃单体的摩尔比从0.05 / 1增加到5/1来控制，通过降低摩尔比以增加A / （B + C），并且增加摩尔比以降低A /（B + C）的比例。