摘要:
The terminally functionalized polymers are prepared from living polymers obtained by anionic polymerization of olefinically unsaturated monomers by reacting the living polymers first with capping reagents comprising nitrogen compounds of the general formulae I to VII: ##STR1## where R.sup.1 and R.sup.4 are each H, alkyl cycloalkyl or aryl, R.sup.2, R.sup.3 and R.sup.5 are each alkyl, cycloalkyl or aryl and A is a substituted or unsubstituted bridge which, in addition to the C members, can also contain N or O members and ##STR2## where R.sup.6 and R.sup.7 are each alkyl or aryl, A is a single-membered substituted or unsubstituted carbon bridge and B is a 2- to 12-membered bridge of which at least those members adjacent to the nitrogen atom comprise --C(R.sup.8, R.sup.9) radicals, where R.sup.8 and R.sup.9 can be identical or different and are H, alkyl, cycloalkyl or aryl, and the nonadjacent members can be not only --C(R.sup.8, R.sup.9) radicals but also ethyl or N-alkyl or N-aryl-imino groups, and the polymer obtained is then made to react with a terminating agent which contains halogen or acid anhydride groups, suitable capping reagents being compounds of the class of 1,5-diazabicyclo[3,1,0]hexane and suitable terminating agents being chloromethylstyrenes, acryloyl chloride, methacryloyl chloride, epichlorohydrin, acrylic anhydride, methacrylic anhydride or maleic anhydride.
摘要:
Process for preparing N,N'-dialkyldiaziridines or bicyclic diaziridines of the general formula I or II: ##STR1## where R.sup.1 and R.sup.2 are each alkyl or aryl, A is a substituted or unsubstituted one-membered carbon bridge and B is a substituted or unsubstituted three-membered methylene bridge, by reacting a mixture of two moles of a monoamine or one mole of a 1,3-diamine with one mole of an aldehyde or ketone at 25.degree.-70.degree. C., preferably 40.degree.-50.degree. C., while thoroughly mixing with one mole of an aqueous solution of an alkali metal or alkaline earth metal salt of hypochlorous acid and extracting with an organic solvent, preferably chloroform, from the reaction mixture, as well as bicyclic diaziridines which have 1,3-diazabicyclo-[3.1.0]-hexane as basic structure and are prepared using 2,2-dimethyl-1,3-propylenediamine.
摘要:
Isobutene polymers having a mean degree of polymerization P of from 10 to 100 and a proportion E of double bonds, capable of reaction with maleic anhydride, of from 60 to 90%, where E=100% corresponds to the calculated theoretical value for the case where each molecule of the isobutene polymer contains such a reactive double bond.
摘要:
The method of stabilizing mineral oil and its refinery products by addition thereto of a small stabilizing amount of alternating copolymers of the type. . . A -- B -- A -- B -- A . . .in which A denotes the structural unit of the general formula--C(R.sup.1)(R.sup.2) - CH.sub.2 --where R.sup.1 denotes hydrogen or alkyl of from 1 to 8 carbon atoms and R.sup.2 has the meanings stated for R.sup.1 or denotes a phenyl group, and in which B stands for structural units of the general formulae ##STR1## where R.sup.3 denotes a saturated hydrocarbon radical of from 8 to 20 carbon atoms and R.sup.4 denotes hydrogen or alkyl of from 8 to 20 carbon atoms.
摘要翻译:通过添加其稳定矿物油及其炼油产品的方法,该稳定量的这种类型的交替共聚物。 。 。 A - B - A - B - A。 。 。
摘要:
Hot-melt pressure-sensitive adhesive composition based on a rubbery block copolymer of a monovinyl-aromatic compound or monovinylidene-aromatic compound and butadiene.The composition contains a selectively hydrogenated radial block copolymer with terminal polymer blocks of the monovinyl- or mono-vinylidene-aromatic compound and, in the middle position, butadiene-based polymer blocks which had a 1,2-vinyl content of from 30 to 70 per cent by weight prior to hydrogenation. The compositions may be used, in particular, for the production of self-adhesive materials.
摘要:
Hydrocarbons and polymers thereof, of the structure (I)R--C(CH.sub.3).sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --CH.dbd.CH--CH.sub.2 --Cl (I)where R is a hydrocarbon radical, are prepared by reacting corresponding starting materials which contain chlorine bonded to tertiary carbon, of the structureR--C(CH.sub.3).sub.2 --CH.sub.2 --C(CH.sub.3).sub.2 --Cl (II)with from 1 to 10 moles of butadiene in the presence of a Friedel-Crafts catalyst in a solvent which is inert to the catalyst, and the hydrocarbons or polymers thereof can be reacted in a further step of the process with a compound from the group comprising ammonia, primary or secondary amine or polyamine, amino alcohol, amino ether, hydrazine or hydrazine which is substituted up to three times.
摘要:
Homopolymers or block copolymers of vinylaromatics and/or dienes and hydrogenated derivatives thereof, which contain end groups of the general formula (I): NH--(A).sub.x --NR.sup.1 R.sup.2 .multidot.n H.sub.m S (I)where A is a substituted or unsubstituted bridge which, in addition to carbon, may contain nitrogen or oxygen, X is 0 or 1, S is an inorganic or organic acid radical, n is an integer from 1 to 12 and indicates the number of moles of acid used per chain end, R.sup.1 and R.sup.2 are each hydrogen, aliphatic or aromatic radicals or a bridge of 3 to 12 carbon members which may be substituted by aliphatic or aromatic radicals, and m is the number of hydrogen ions of the acid used, are prepared from polymers having amino end groups of the general formula (II): NH--(A).sub.x --NR.sup.2 R.sup.3 (II)where R.sup.1, R.sup.2, A and x are as defined above, by reaction with from 1 to 12 moles of an inorganic or organic acid and used as molding materials for modifying thermoplastic materials or vulcanizable materials and as adhesives.
摘要翻译:含有通式(I)的端基的乙烯基芳烃和/或二烯及其氢化衍生物的均聚物或嵌段共聚物:NH-(A)x-NR1R2xn HmS(I)其中A是取代或未取代的桥, 除了碳以外,可以含有氮或氧,X为0或1,S为无机酸或有机酸基,n为1〜12的整数,表示每个链末端使用的酸的摩尔数,R1和R2为 每个氢,脂族或芳族基团或可被脂族或芳族基团取代的3至12个碳成员的桥,m是所用酸的氢离子数,由具有一般氨基端基的聚合物制备 式(II):NH-(A)x-NR 2 R 3(II)其中R1,R2,A和x如上定义,通过与1至12摩尔的无机或有机酸反应并用作改性的成型材料 热塑性材料或可硫化材料和粘合剂。
摘要:
Homopolymers, copolymers or block copolymers obtained from vinylaromatics and/or conjugated dienes and functionally modified at chain ends via amide groups with terminal acid groups or salts thereof, and hydrogenation products of these polymers, which contain salts of functional groups of the formula I, II, III, IV or V ##STR1## wherein N is nitrogen, R.sup.1 is alkyl or aryl, R.sup.3 is a 2-membered to 20-membered bridge in which at least the members adjacent to the nitrogen atoms consist of --C(R.sup.6, R.sup.7) radicals, where R.sup.6 and R.sup.7 are each hydrogen, alkyl, cycloalkyl or aryl, and the more remote members are not only --C(R.sup.6, R.sup.7) radicals but may furthermore be ether or N-alkyl- or N-arylimino groups, R.sup.2 is a divalent organic radical, R.sup.4, R.sup.5, R.sup.8 and R.sup.9 are each alkyl or aryl or together form a cyclic bridge, and X is COOH or SO.sub.3 H or their salts or complexes and a process for preparing the polymers and copolymers. The polymers and copolymers are used as toughening agents to modify polyurethanes, as a component of hot melt adhesives or as a lubricating oil component.
摘要:
Mixtures which can be crosslinked by photopolymerization and are based on binders, photopolymerizable monomers which are compatible with these, photoinitiators and thermal polymerization inhibitors contain, as the binder, polymers of the formula I ##STR1## where Pol is a radical of a block copolymer prepared by sequential anionic polymerization of conjugated dienes and vinyl aromatics,R.sup.1 is a vicinal alkanediyl group,R.sup.2 is a divalent hydrocarbon group of 2 to 20 carbon atoms,X.sup.- is an acid anion,M is a metal cation, a metal cation complex or cation of an amine, anda and n are each an integer from 1 to 10.
摘要:
Block polymers of vinylaromatic compounds and conjugated dienes which possess acidic terminal groups, are present in the form of lithium salts and form an aluminum complex. A process for the preparation of such complexes and the use of these block polymer complexes as molding materials and for modifying thermoplastic materials.