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    Process for producing polymers or oligomers of controlled molecular weight and end group functionalities
    31.
    发明授权
    Process for producing polymers or oligomers of controlled molecular weight and end group functionalities 失效
    制备具有受控分子量和端基官能团的聚合物或低聚物的方法

    公开(公告)号：US06197905B1

    公开(公告)日：2001-03-06

    申请号：US08828201

    申请日：1997-03-21

    申请人： Ezio Rizzardo ,  Gordon Francis Meijs ,  San Hoa Thang

    发明人： Ezio Rizzardo ,  Gordon Francis Meijs ,  San Hoa Thang

    IPC分类号： C08F238

    CPC分类号： C08F2/38

    摘要： A process for the production of polymers by free radical polymerization, characterized in that there is added to the polymerization system one or more compounds of general formula (A), where R1 is a group capable of activating the vinylic carbon towards free radical addition; Y is OR2, where R2 is an optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, or optionally substituted saturated or unsaturated carbocyclic or heterocyclic ring; X is an element other than carbon selected from the Groups, IV, V, VI or VII of the Periodic Table or a group consisting of an element selected from the Groups IV, V, or VI to which is attached one or more oxygen atoms; and n is a number from 0 to 3, such that the valency of the group X is satisfied and, when n is greater than 1, the groups represented by R2 are identical or different.

    摘要翻译： 通过自由基聚合制备聚合物的方法，其特征在于向聚合体系中加入一种或多种通式（A）的化合物，其中R 1是能够将乙烯基碳活化成自由基加成的基团; Y是OR 2，其中R 2是任选取代的烷基，任选取代的烯基，任选取代的炔基或任选取代的饱和或不饱和碳环或杂环; X是除了选自元素周期表中第Ⅳ，Ⅴ，Ⅵ或Ⅶ族的碳以外的元素，或由选自附有一个或多个氧原子的第Ⅳ，Ⅴ或Ⅵ族元素组成的组元素; 并且n为0至3的数，使得满足基团X的化合价，并且当n大于1时，由R 2表示的基团相同或不同。

    Control of Molecular weight and end group functionality in polymers using unsaturated peroxy compounds as chain transfer agents
    32.
    发明授权
    Control of Molecular weight and end group functionality in polymers using unsaturated peroxy compounds as chain transfer agents 失效
    使用不饱和过氧化合物作为链转移剂控制聚合物中的分子量和端基官能度

    公开(公告)号：US5698648A

    公开(公告)日：1997-12-16

    申请号：US202473

    申请日：1994-02-28

    申请人： Ezio Rizzardo ,  Gordon Francis Meijs ,  San Hoa Thang

    发明人： Ezio Rizzardo ,  Gordon Francis Meijs ,  San Hoa Thang

    IPC分类号： C07C409/04 ,  C07C409/16 ,  C07C409/18 ,  C07C409/38 ,  C07C409/40 ,  C08F2/38 ,  C08F4/34 ,  C08F124/00

    CPC分类号： C07C409/04 ,  C07C409/16 ,  C07C409/18 ,  C07C409/38 ,  C07C409/40 ,  C08F2/38 ,  C08F4/34

    摘要： A process for the production of lower molecular weight polymers by free radical polymerization, characterized in that there is added to the polymerization system a compound of the general formula I ##STR1## wherein R.sup.1 is hydrogen, chlorine, an alkyl group, or a group capable of activating the vinylic carbon towards free radical addition; R.sup.2 is hydrogen or an optionally substituted alkyl, alkenyl, aryl, cycloalkenyl or cycloalkyl group or the group --COZ, where Z is R.sup.3 or OR.sup.3, where R.sup.3 is hydrogen or an optionally substituted alkyl, alkenyl or aryl group. X is a hydrogen atom, an alkyl or aryl group, or a halogen, and the two X groups may be the same or different. The invention also includes polymers or oligomers made by the process and novel compounds of the general formula I as defined above.

    摘要翻译： 通过自由基聚合生产低分子量聚合物的方法，其特征在于向聚合体系中加入通式为I n烷基的化合物或能够将乙烯基碳活化成自由基添加的基团; R2是氢或任选取代的烷基，烯基，芳基，环烯基或环烷基或基团-COZ，其中Z是R3或OR3，其中R3是氢或任选取代的烷基，烯基或芳基。 X是氢原子，烷基或芳基或卤素，两个X基可以相同或不同。 本发明还包括通过该方法制备的聚合物或低聚物和如上定义的通式I的新化合物。

    Raft polymerisation
    35.
    发明授权
    Raft polymerisation 有权
    筏聚合

    公开(公告)号：US09340498B2

    公开(公告)日：2016-05-17

    申请号：US13145993

    申请日：2010-01-22

    申请人： Ezio Rizzardo ,  John Chiefari ,  Massimo Benaglia ,  San Thang ,  Graeme Moad

    发明人： Ezio Rizzardo ,  John Chiefari ,  Massimo Benaglia ,  San Thang ,  Graeme Moad

    IPC分类号： C08F2/38 ,  C07C329/20 ,  C07C333/24 ,  C07D213/68 ,  C07D213/74 ,  C08F4/00 ,  C08F293/00 ,  C07D213/24 ,  C07D213/06 ,  C07D213/60

    CPC分类号： C07C329/20 ,  C07C333/24 ,  C07D213/06 ,  C07D213/24 ,  C07D213/60 ,  C07D213/68 ,  C07D213/74 ,  C08F2/38 ,  C08F4/00 ,  C08F293/005 ,  C08F2438/03

    摘要： A method of preparing polymer, the method comprising polymerizing one or more ethylenically unsaturated monomers of formula (I) where U is selected from H, C1-C4 alkyl or halogen; V is halogen or of the form O-G where G is selected from —C(O)R1 and —R1, or V is of the form NGGa where G is as defined above and Ga is selected from H and R1, G and Ga form together with N a heterocyclic ring, or V is of the form CH2Gb where Gb is selected from H, R1, OH, OR1, NR12, PR12, P(O)R12, P(OR1)2, SR1, SOR1, and SO2R1; and where the or each R1 is independently selected from optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, optionally substituted arylalkyl, optionally substituted heteroarylalkyl, optionally substituted alkylaryl, optionally substituted alkylheteroaryl, and an optionally substituted polymer chain, under the control of a RAFT agent of formula (II) or (III), where Y is a Lewis base moiety and Y* is an n-valent Lewis base moiety; X is O or NR1, R1 is as defined above or forms together with Y or Y* and N a heterocyclic ring; m is an integer ≧1; n is an integer ≧2; and where R* is a m-valent radical leaving group that affords R*. which initiates free radical polymerization of the one or more ethylenically unsaturated monomers of formula (I), and R is a free radical leaving group that affords R. which initiates free radical polymerization of the one or more ethylenically unsaturated monomers of formula (I).

    摘要翻译： 一种制备聚合物的方法，所述方法包括使U选自H，C 1 -C 4烷基或卤素的一种或多种式（I）的烯属不饱和单体聚合; V是卤素或其中G选自-C（O）R 1和-R 1的OG形式，或V是NGGa形式，其中G如上所定义，并且Ga选自H和R 1，G和Ga一起形成 其中G a选自H，R 1，OH，OR 1，NR 12，PR 12，P（O）R 12，P（OR 1）2，SR 1，SOR 1和SO 2 R 1; 任选取代的芳基，任选取代的杂芳基，任选取代的碳环基，任选取代的杂环基，任选取代的芳基烷基，任选取代的杂芳基烷基，任选取代的烷基芳基， 任选取代的烷基杂芳基和任选取代的聚合物链，其在式（II）或（III）的RAFT试剂的控制下，其中Y是路易斯碱部分，Y *是n价路易斯碱部分; X是O或NR 1，R 1如上定义或与Y或Y *一起形成，并且N a是杂环; m是整数≧1; n是整数≥2; 并且其中R *是提供R *的m价离去基团。 其引发式（I）的一种或多种烯属不饱和单体的自由基聚合，R是提供R.引发式（I）的一种或多种烯属不饱和单体的自由基聚合的自由基离去基团。

    Process for synthesizing thiol terminated polymers
    37.
    发明申请
    Process for synthesizing thiol terminated polymers 有权
    硫醇封端聚合物的合成方法

    公开(公告)号：US20070232783A1

    公开(公告)日：2007-10-04

    申请号：US11710305

    申请日：2007-02-23

    申请人： Graeme Moad ,  Ezio Rizzardo ,  San Thang

    发明人： Graeme Moad ,  Ezio Rizzardo ,  San Thang

    IPC分类号： C08F6/00

    CPC分类号： C08F293/005 ,  C08F8/00 ,  C08F2438/03 ,  C08F120/14 ,  C08F112/08 ,  C08F120/18

    摘要： The present invention is directed to a process for the cleavage of one or more starting polymers having thiocarbonylthio groups of the formula —S—(C═S)— into derived polymers having thiol end groups of the formula —SH. The process includes contacting the aforedescribed starting polymers, with a reagent having the formula Xa Yb, wherein Xa is a nucleophilic group and Yb is an extracting group that results in the starting polymer and a byproduct, which is then separated from the derived polymer by conventional separation processes. The derived polymer is free from any odor or color that is sometimes associated with the starting polymer and it can be used in making optical lenses, such as contact lenses.

    摘要翻译： 本发明涉及将具有式-S-（C-S） - 的硫代羰基硫基的一种或多种起始聚合物切割成具有式-SH硫醇端基的衍生聚合物的方法。 该方法包括使上述起始聚合物与具有式X的试剂接触 Y＆lt; b＆lt; b＆lt; 是亲核基团，Y B是导致起始聚合物和副产物的提取基团，然后通过常规分离方法与衍生的聚合物分离。 衍生的聚合物没有任何有时与起始聚合物缔合的气味或颜色，并且可以用于制造光学透镜，例如隐形眼镜。