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    • 2. 发明申请
    • Controlled polymerization
    • 受控聚合
    • US20080051543A1
    • 2008-02-28
    • US11823890
    • 2007-06-29
    • Dane ParkerFrank FeherViswanath Mahadevan
    • Dane ParkerFrank FeherViswanath Mahadevan
    • C08F220/44C08F12/30
    • C08F297/048C08F2/22C08F2/38C08F12/08C08F293/00C08F293/005C08F2438/00C08F2438/01C08F2438/02C08F2438/03C08G61/08C08G2261/418C08L53/00C08L53/02C08L2666/02
    • The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium. The subject invention more specifically reveals an emulsion polymerization process that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, (b) a conjugate acid of a surfactant with a pKa of less than 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier, and (4) initiating free radical polymerization. This technique can be used to synthesize unique block polymers, such as a block polymer which is comprised of an A block and a B block, wherein the A block is a polymer block which is comprised of a vinyl aromatic monomer and wherein the B block is a polymer block which is comprised of (a) at least one monomer selected from the group consisting of acrylonitrile and methacrylonitrile and (b) a conjugated diolefin monomer, such as 1,3-butadiene or isoprene.
    • 本发明公开了一种乳液聚合方法,其包括:(1)制备由(a)至少一种单体,(b)聚合控制剂和乳化剂组成的水性聚合介质,其中, 位于水性聚合介质中; 和(2)在水性聚合介质中引发所述单体的聚合。 本发明更具体地揭示了一种乳液聚合方法,其包括:(1)制备单体溶液,其包含(a)至少一种单体,(b)表面活性剂的共轭酸与pK < SUB>小于14,和(c)受控自由基聚合剂; (2)制备由(a)水和(b)弱酸的共轭碱组成的水性介质,其中所述碱的pK 小于14; 和(3)在导致乳化剂原位形成的条件下将单体溶液与水性介质混合,和(4)引发自由基聚合。 该技术可用于合成独特的嵌段聚合物,例如由A嵌段和B嵌段组成的嵌段聚合物,其中A嵌段是由乙烯基芳族单体组成的聚合物嵌段,其中B嵌段是 由(a)至少一种选自丙烯腈和甲基丙烯腈的单体和(b)共轭二烯烃单体如1,3-丁二烯或异戊二烯组成的聚合物嵌段。
    • 3. 发明申请
    • Controlled polymerization
    • 受控聚合
    • US20060241258A1
    • 2006-10-26
    • US11454742
    • 2006-06-16
    • Dane ParkerFrank FeherViswanath Mahadevan
    • Dane ParkerFrank FeherViswanath Mahadevan
    • C08F4/00
    • C08F297/048C08F2/22C08F2/38C08F12/08C08F293/00C08F293/005C08F2438/00C08F2438/01C08F2438/02C08F2438/03C08G61/08C08G2261/418C08L53/00C08L53/02C08L2666/02
    • The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium. The subject invention more specifically reveals an emulsion polymerization process that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, (b) a conjugate acid of a surfactant with a pKa of less than 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier, and (4) initiating free radical polymerization.
    • 本发明公开了一种乳液聚合方法,其包括:(1)制备由(a)至少一种单体,(b)聚合控制剂和乳化剂组成的水性聚合介质,其中, 位于水性聚合介质中; 和(2)在水性聚合介质中引发所述单体的聚合。 本发明更具体地揭示了一种乳液聚合方法,其包括:(1)制备单体溶液,其包含(a)至少一种单体,(b)表面活性剂的共轭酸与pK < SUB>小于14,和(c)受控自由基聚合剂; (2)制备由(a)水和(b)弱酸的共轭碱组成的水性介质,其中所述碱的pK 小于14; 和(3)在导致乳化剂原位形成的条件下将单体溶液与水性介质混合,和(4)引发自由基聚合。
    • 4. 发明申请
    • Core-shell particles synthesized through controlled free radical polymerization
    • 通过控制自由基聚合合成的核 - 壳颗粒
    • US20060141150A1
    • 2006-06-29
    • US11023868
    • 2004-12-27
    • Lei ZhengJohn LeanEric CastnerThierry Florent MaterneDane ParkerFrank Feher
    • Lei ZhengJohn LeanEric CastnerThierry Florent MaterneDane ParkerFrank Feher
    • B01J13/02
    • C08F279/02C08F257/02C08F291/00C08F2/38
    • The present invention discloses a process for producing a core-shell polymer that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, optional one crosslinking monomer (b) a conjugate acid of a surfactant with a pKa of less than 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier to produce a polymerization medium, and (4) initiating free radical polymerization within the polymerization medium to produce a core polymer, wherein the core contains a free radical control agents, (5) adding a second monomer to the polymerization medium containing the core polymer, and (6) allowing polymerization to proceed in the presence of the free radical control agent to produce the core-shell polymer.
    • 本发明公开了一种制备核 - 壳聚合物的方法,其包括:(1)制备单体溶液,该单体溶液由(a)至少一种单体,任选的一种交联单体(b)表面活性剂的共轭酸与 pKa小于14,(c)受控自由基聚合剂; (2)制备由(a)水和(b)弱酸的共轭碱组成的水性介质,其中碱的pKb小于14; 和(3)在导致乳化剂原位形成以产生聚合介质的条件下将单体溶液与水性介质混合,和(4)在聚合介质内引发自由基聚合以制备芯聚合物,其中 核心包含自由基控制剂,(5)在含有核聚合物的聚合介质中加入第二单体,和(6)在自由基控制剂的存在下使聚合进行以制备核 - 壳聚合物。
    • 5. 发明申请
    • Hydrogenation and epoxidation of polymers made by controlled polymerization
    • 通过受控聚合制备的聚合物的氢化和环氧化
    • US20080090962A1
    • 2008-04-17
    • US11973411
    • 2007-10-09
    • Dane ParkerFrank FeherViswanath Mahadevan
    • Dane ParkerFrank FeherViswanath Mahadevan
    • C08F8/04
    • C08F4/40C08F2/38C08F2/40C08F8/04C08F8/08C08F293/005
    • The present invention discloses a process for synthesizing a hydrogenated polymer that comprises: (1) preparing a aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; (2) initiating polymerization of said monomer within the aqueous polymerization medium to produce a latex of an unsaturated polymer; (3) treating the latex of the unsaturated polymer with (a) an oxidant selected from the group consisting of oxygen, air and hydroperoxides; (b) a reducing agent selected from the group consisting of hydrazine and hydrates of hydrazine; and (c) a metal ion activator to produce the hydrogenated polymer. The present invention further discloses a process for synthesizing a hydrogenated polymer that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, (b) a conjugate acid of a surfactant with a pKa of less than about 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than about 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier; (4) initiating free radical polymerization to produce a latex of an unsaturated polymer; and (5) treating the latex of the unsaturated polymer with (a) an oxidant selected from the group consisting of oxygen, air and hydroperoxides; (b) a reducing agent selected from the group consisting of hydrazine and hydrates of hydrazine; and (c) a metal ion activator to produce the hydrogenated polymer.
    • 本发明公开了一种合成氢化聚合物的方法,该方法包括:(1)制备水性聚合介质,其由(a)至少一种单体,(b)聚合控制剂和乳化剂组成,其中乳化剂为 在水性聚合介质中原位制备; (2)在水性聚合介质中引发所述单体的聚合以产生不饱和聚合物的胶乳; (3)用(a)选自氧,空气和氢过氧化物的氧化剂处理不饱和聚合物的胶乳; (b)选自肼和肼的水合物的还原剂; 和(c)金属离子活化剂以产生氢化聚合物。 本发明还公开了一种合成氢化聚合物的方法,其包括:(1)制备单体溶液,该单体溶液包含(a)至少一种单体,(b)表面活性剂的共轭酸与pK 小于约14,和(c)受控自由基聚合剂; (2)制备由(a)水和(b)弱酸的共轭碱组成的水性介质,其中碱的pK 小于约14; 和(3)在导致乳化剂原位形成的条件下将单体溶液与水性介质混合; (4)引发自由基聚合以产生不饱和聚合物的胶乳; 和(5)用(a)选自氧,空气和氢过氧化物的氧化剂处理不饱和聚合物的胶乳; (b)选自肼和肼的水合物的还原剂; 和(c)金属离子活化剂以产生氢化聚合物。
    • 6. 发明申请
    • Hydrogenation and epoxidation of polymers made by controlled polymerization
    • 通过受控聚合制备的聚合物的氢化和环氧化
    • US20050256253A1
    • 2005-11-17
    • US11120222
    • 2005-05-02
    • Dane ParkerFrank FeherViswanath Mahadevan
    • Dane ParkerFrank FeherViswanath Mahadevan
    • C08F2/38C08F4/40C08F8/04C08F8/08C08L1/00
    • C08F4/40C08F2/38C08F2/40C08F8/04C08F8/08C08F293/005
    • The present invention discloses a process for synthesizing a hydrogenated polymer that comprises: (1) preparing a aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; (2) initiating polymerization of said monomer within the aqueous polymerization medium to produce a latex of an unsaturated polymer; (3) treating the latex of the unsaturated polymer with (a) an oxidant selected from the group consisting of oxygen, air and hydroperoxides; (b) a reducing agent selected from the group consisting of hydrazine and hydrates of hydrazine; and (c) a metal ion activator to produce the hydrogenated polymer. The present invention further discloses a process for synthesizing a hydrogenated polymer that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, (b) a conjugate acid of a surfactant with a pKa of less than about 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than about 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier; (4) initiating free radical polymerization to produce a latex of an unsaturated polymer; and (5) treating the latex of the unsaturated polymer with (a) an oxidant selected from the group consisting of oxygen, air and hydroperoxides; (b) a reducing agent selected from the group consisting of hydrazine and hydrates of hydrazine; and (c) a metal ion activator to produce the hydrogenated polymer.
    • 本发明公开了一种合成氢化聚合物的方法,该方法包括:(1)制备水性聚合介质,其由(a)至少一种单体,(b)聚合控制剂和乳化剂组成,其中乳化剂为 在水性聚合介质中原位制备; (2)在水性聚合介质中引发所述单体的聚合以产生不饱和聚合物的胶乳; (3)用(a)选自氧,空气和氢过氧化物的氧化剂处理不饱和聚合物的胶乳; (b)选自肼和肼的水合物的还原剂; 和(c)金属离子活化剂以产生氢化聚合物。 本发明还公开了一种合成氢化聚合物的方法,其包括:(1)制备单体溶液,该单体溶液包含(a)至少一种单体,(b)表面活性剂的共轭酸与pK 小于约14,和(c)受控自由基聚合剂; (2)制备由(a)水和(b)弱酸的共轭碱组成的水性介质,其中碱的pK 小于约14; 和(3)在导致乳化剂原位形成的条件下将单体溶液与水性介质混合; (4)引发自由基聚合以产生不饱和聚合物的胶乳; 和(5)用(a)选自氧,空气和氢过氧化物的氧化剂处理不饱和聚合物的胶乳; (b)选自肼和肼的水合物的还原剂; 和(c)金属离子活化剂以产生氢化聚合物。
    • 7. 发明申请
    • Controlled polymerization
    • 受控聚合
    • US20050282957A1
    • 2005-12-22
    • US11186305
    • 2005-07-21
    • Dane ParkerFrank FeherViswanath Mahadevan
    • Dane ParkerFrank FeherViswanath Mahadevan
    • C08F2/22C08F2/24C08F2/38C08F293/00C08F2/00
    • C08F297/048C08F2/22C08F2/38C08F12/08C08F293/00C08F293/005C08F2438/00C08F2438/01C08F2438/02C08F2438/03C08G61/08C08G2261/418C08L53/00C08L53/02C08L2666/02
    • The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium. The subject invention more specifically reveals an emulsion polymerization process that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, (b) a conjugate acid of a surfactant with a pKa of less than 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier, and (4) initiating free radical polymerization.
    • 本发明公开了一种乳液聚合方法,其包括:(1)制备由(a)至少一种单体,(b)聚合控制剂和乳化剂组成的水性聚合介质,其中, 位于水性聚合介质中; 和(2)在水性聚合介质中引发所述单体的聚合。 本发明更具体地揭示了一种乳液聚合方法,其包括:(1)制备单体溶液,其包含(a)至少一种单体,(b)表面活性剂的共轭酸与pK < SUB>小于14,和(c)受控自由基聚合剂; (2)制备由(a)水和(b)弱酸的共轭碱组成的水性介质,其中所述碱的pK 小于14; 和(3)在导致乳化剂原位形成的条件下将单体溶液与水性介质混合,和(4)引发自由基聚合。