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    • 3. 发明授权
    • Polymerization with living characteristics
    • 具有生活特性的聚合
    • US07714075B1
    • 2010-05-11
    • US09762833
    • 1997-07-03
    • Tam Phuong LeGraeme MoadEzio RizzardoSan Hoa Thang
    • Tam Phuong LeGraeme MoadEzio RizzardoSan Hoa Thang
    • C08L23/04
    • C08K5/38C07C327/36C07C329/00C07F9/4065C08F2/38C08F12/08C08F293/00C08F293/005C08L25/06
    • 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.
    • 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。
    • 8. 发明授权
    • Microgels and process for their preparation
    • 微凝胶及其制备方法
    • US06646055B2
    • 2003-11-11
    • US09969706
    • 2001-10-03
    • Charles T. BergeMichael FrydJeffrey W. JohnsonGraeme MoadEzio RizzardoChristopher ScopazziSan Hoa Thang
    • Charles T. BergeMichael FrydJeffrey W. JohnsonGraeme MoadEzio RizzardoChristopher ScopazziSan Hoa Thang
    • C08F238
    • C08F265/04C08F290/04C08F290/061C08F293/00C08F293/005Y10S514/944
    • 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).
    • 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。