Protected functional initiators for making terminally functionalized
polymers
    32.
    发明授权
    Protected functional initiators for making terminally functionalized polymers 失效
    用于制备末端官能化聚合物的受保护的官能引发剂

    公开(公告)号:US5391663A

    公开(公告)日:1995-02-21

    申请号:US155665

    申请日:1993-11-22

    CPC分类号: C08F4/48 C07F7/1864 C08F36/06

    摘要: The anionic polymerization of unsaturated monomers with functionalized initiators having the structure R.sup.1 R.sup.2 R.sup.3 Si--O--A'--Li is improved by selecting A' from the structures --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,3-propyl), --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --(2-methyl-1,3-propyl), --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --(2,2-dimethyl-1,3-propyl), or --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,8-octyl). This narrow class of polymerization initiators operate at surprisingly higher polymerization temperatures with surprisingly lower amounts of dead initiator than similar initiators wherein A' is --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,4-butyl), --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --(1,5-pentyl), or --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 13 CH.sub.2 --(1,6-hexyl).

    摘要翻译: 通过从结构-CH 2 -CH 2 -CH 2 - (1,3-丙基),-CH 2 -CH(CH 3)2中选择A'来改善不饱和单体与具有结构R1R2R3Si-O-A'-Li的官能化引发剂的阴离子聚合 )-CH 2 - (2-甲基-1,3-丙基),-CH 2 -C(CH 3)2 -CH 2 - (2,2-二甲基-1,3-丙基)或-CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 - (1,8-辛基)。 这种窄类聚合引发剂在令人惊奇的更高的聚合温度下操作,其中A'是-CH 2 -CH 2 -CH 2 - (1-丁基),-CH 2 -CH 2 -CH 2 - CH 2 -CH 2 - (1,5-戊基)或-CH 2 -CH 2 -CH 2 -CH 2 -CH 2 13 CH 2 - (1,6-己基)。

    Low viscosity terminally functionalized isoprene polymers
    33.
    发明授权
    Low viscosity terminally functionalized isoprene polymers 失效
    低粘度的末端官能化异戊二烯聚合物

    公开(公告)号:US5376745A

    公开(公告)日:1994-12-27

    申请号:US160341

    申请日:1993-12-01

    CPC分类号: C08F136/06

    摘要: The anionic polymerization of isoprene with monolithium initiators and functionalized initiators having the structure R.sup.1 R.sup.2 R.sup.3 Si--O--A'--Li wherein R.sup.1, R.sup.2, and R.sup.3 are preferably alkyl, alkoxy, aryl, or alkaryl groups having from 1 to 10 carbon atoms, and A' is preferably a branched or straight chain bridging group having at least 2 carbon atoms produces unsaturated and hydrogenated isoprene polymers having high 1,4-addition of the isoprene, from about one to two terminal functional groups per molecule, and low viscosity.

    摘要翻译: 具有单键引发剂的异戊二烯和具有结构R1R2R3Si-O-A'-Li的官能化引发剂的异戊二烯的阴离子聚合,其中R1,R2和R3优选为具有1至10个碳原子的烷基,烷氧基,芳基或烷芳基,A 优选具有至少2个碳原子的支链或直链桥连基产生具有异戊二烯高1,4-加成,每分子约1至2个末端官能团和低粘度的不饱和和氢化异戊二烯聚合物。

    Hydroxyl functional derivatives of epoxidized diene block copolymers and
process for making them (II)
    34.
    发明授权
    Hydroxyl functional derivatives of epoxidized diene block copolymers and process for making them (II) 失效
    环氧二烯嵌段共聚物的羟基官能衍生物及其制备方法(II)

    公开(公告)号:US5356969A

    公开(公告)日:1994-10-18

    申请号:US217470

    申请日:1994-03-24

    摘要: A process for making polymers of conjugated dienes which contain hydroxyl groups in the diene blocks which comprises(a) making a precursor polymer by polymerizing at least one conjugated diene which leaves 1,2 disubstituted, 1,1 disubstituted, 1,1,2 trisubstituted or tetrasubstituted olefinic unsaturation in the polymer,(b) optionally partially hydrogenating said precursor polymer,(c) epoxidizing said precursor polymer such that epoxy groups form at said substituted sites and the amount of epoxy functionality in the polymer is from 0.1 to 5 Meq/g polymer, and(d) reacting the epoxidized polymer with an alcohol solution of hydrochloric acid.A diene polymer containing 0.1 to 10 Meq/g polymer of hydroxyl group and comprised of alcohol units of the formula ##STR1## where R.sub.1 and R.sub.2 are hydrogen or alkyl radicals and X and X' are either --OH or --Cl and at least one of them is --OH.

    摘要翻译: 一种在二烯嵌段中含有羟基的共轭二烯的聚合物的方法,其包括(a)通过聚合至少一种共轭二烯制备前体聚合物,所述共轭二烯离开1,2-二取代的1,1,1-二取代的1,1,2三取代 或聚合物中的四取代的烯属不饱和键,(b)任选地部分氢化所述前体聚合物,(c)使所述前体聚合物环氧化,使得环氧基在所述取代部位形成,聚合物中环氧官能度的量为0.1-5Meq / g聚合物,和(d)使环氧化聚合物与盐酸的醇溶液反应。 包含0.1至10Meq / g羟基的聚合物并且由式(Ia)的醇单元组成的二烯聚合物,其中R 1和R 2是氢或烷基,X和X'是-OH或-Cl和至少一个 他们是-OH。

    Hydroxyl functional derivatives of epoxidized diene polymers and process
for making them
    35.
    发明授权
    Hydroxyl functional derivatives of epoxidized diene polymers and process for making them 失效
    环氧化二烯聚合物的羟基官能衍生物及其制备方法

    公开(公告)号:US5262496A

    公开(公告)日:1993-11-16

    申请号:US049691

    申请日:1993-04-16

    摘要: A process for making polymers of conjugated dienes which contain hydroxyl groups, including highly reactive primary hydroxyl groups, in the diene blocks which comprises(a) making a precursor polymer by polymerizing at least one conjugated diene which leaves 1,2 disubstituted, 1,1 disubstituted, 1,1,2 trisubstituted or tetrasubstituted olefinic unsaturation in the polymer,(b) optionally partially hydrogenating said precursor polymer,(c) epoxidizing said precursor polymer such that epoxy groups form at said substituted sites and the amount of epoxy functionality in the polymer is from at least 0.1 Meq/g polymer, and(d) reacting the epoxidized polymer with an alcohol having one unprotected hydroxyl group in a solvent in the presence of a Lewis acid selected from the group consisting of MX.sub.n where M is selected from the group consisting of boron, aluminum, iron and tin, and X is a halogen, and organic complexes of such acids.A diene polymer containing 0.01 to 15 Meq/g polymer of hydroxyl group, preferably including highly reactive primary hydroxyl groups, and comprised of ether-alcohol units of the formula ##STR1## where R is selected from the group consisting of alkyl radicals containing up to 10 carbon atoms, monohydric and dihydric alcohol groups and carbonate groups; and R.sub.1 and R.sub.2 are hydrogen or alkyl radicals wherein in (G) only one of R.sub.1 or R.sub.2 is hydrogen.

    摘要翻译: 在二烯嵌段中制备含有羟基(包括高反应性伯羟基)的共轭二烯的聚合物的方法,其包括(a)通过聚合至少一种离去1,2-二取代的共轭二烯制备前体聚合物,1,1 聚合物中的二取代的,1,1,2三取代或四取代的烯属不饱和键,(b)任选地部分氢化所述前体聚合物,(c)环氧化所述前体聚合物,使得环氧基在所述取代部位形成, 聚合物为至少0.1Meq / g聚合物,和(d)使环氧化聚合物与具有一个未保护羟基的醇在溶剂中,在路易斯酸存在下反应,该路易斯酸选自MXn,其中M选自 由硼,铝,铁和锡组成的组,X是卤素,以及这些酸的有机络合物。 含有0.01至15Meq / g羟基聚合物的二烯聚合物,优选包括高度反应性的伯羟基,并且由选自以下的式(Ⅹ)或(IMA)(G)的醚 - 醇单元组成: 由含有至多10个碳原子的烷基组成的组,一元和二元醇基团和碳酸酯基团; 并且R 1和R 2是氢或烷基,其中在(G)中,R 1或R 2中只有一个是氢。

    Surface treatment of carbon microfibers
    36.
    发明授权
    Surface treatment of carbon microfibers 失效
    碳微纤维的表面处理

    公开(公告)号:US07862794B2

    公开(公告)日:2011-01-04

    申请号:US11841548

    申请日:2007-08-20

    IPC分类号: D01F9/12

    CPC分类号: D01F11/122 Y10T428/2918

    摘要: A method of oxidizing the surface of carbon microfibers that includes contacting the microfibers with an oxidizing agent that includes sulfuric acid and potassium chlorate under reaction conditions sufficient to oxidize the surface. The invention also features a method of decreasing the length of carbon microfibers that includes contacting the microfibers with an oxidizing agent under reaction conditions sufficient to decrease the length.

    摘要翻译: 一种氧化碳微纤维表面的方法,其包括在足以氧化表面的反应条件下使微纤维与包含硫酸和氯酸钾的氧化剂接触。 本发明还具有减少碳微纤维长度的方法,其包括在足以减少长度的反应条件下使微纤维与氧化剂接触。