Abstract:
The present disclosure relates to a process for synthesizing multi- or dual- headed compositions having the formula R 1 M A [R 2 M A —] N R 1 by employing a sterically hindered compound and an organometallic compound in the presence of a transition metal catalyst. The present disclosure further relates to use of the compositions, as well as the process to make the same, in olefin polymerization.
Abstract translation:本公开内容涉及通过在过渡金属催化剂存在下使用空间位阻化合物和有机金属化合物来合成具有式R 1 MA [R 2 MA] NR 1的多头或双头组合物的方法。 本公开还涉及在烯烃聚合中使用该组合物以及其制备方法。
Abstract:
A composition is provided, which comprises at least one cyclic urea compound of Formula 1, as described herein. The composition can be used in electronic devices, such as organic electroluminescent devices.
Abstract:
Disclosed is a composition comprising at least one compound selected from (Structure A), as described herein, and for films and electronic devices containing the same.
Abstract:
Embodiments are directed to catalyst systems comprising at least one metal ligand complex and to processes for polyolefin polymerization incorporating the catalyst systems. The metal ligand complexes have the following structures: (I)
Abstract:
Embodiments are directed to catalyst systems comprising at least one metal ligand complex and to processes for polyolefin polymerization incorporating the catalyst systems. The metal ligand complexes have the following structures:
Abstract:
The present disclosure relates to a catalyst system for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first olefin polymerization procatalyst, (B) a second olefin polymerization procatalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by procatalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
Abstract:
Provided is an organic light-emitting diode comprising a substrate, an anode layer, optionally one or more hole injection layers, one or more hole transport layers, optionally one or more electron blocking layers, an emitting layer, optionally one or more hole blocking layers, optionally one or more electron transport layers, an electron injection layer, and a cathode, wherein either the hole injection layer, or the hole transport layer, or both of the hole injection layer and the hole transport layer, or layer that functions as both a hole injection layer and a hole transport layer, comprises a polymer that comprises one or more triaryl aminium radical cations having the structure (S1) wherein each of R 11 , R 12 , R 13 , R 14 , R 15 , R 21 , R 22 , R 23 , R 24 , R 25 , R 31 , R 32 , R 33 , R 34 , and R 35 is independently selected from the group consisting of hydrogen, deuterium halogens, amine groups, hydroxyl groups, sulfonate groups, nitro groups, and organic groups, wherein two or more of R 11 , R 12 , R 13 , R 14 , R 15 , R 21 , R 22 , R 23 , R 24 , R 25 , R 31 , R 32 , R 33 , R 34 , and R 35 are optionally connected to each other to form a ring structure; wherein one or more of R 11 , R 12 , R 13 , R 14 , R 15 , R 21 , R 22 , R 23 , R 24 , R 25 , R 31 , R 32 , R 33 , R 34 , and R 35 is covalently bound to the polymer, and wherein A is an anion.
Abstract translation:提供了一种有机发光二极管,其包括衬底,阳极层,任选的一个或多个空穴注入层,一个或多个空穴传输层,任选的一个或多个电子阻挡层,发光层 ,任选的一个或多个空穴阻挡层,任选的一个或多个电子传输层,电子注入层和阴极,其中空穴注入层或空穴传输层或空穴注入层和空穴传输层 层或用作空穴注入层和空穴传输层两者的层包含聚合物,所述聚合物包含一种或多种具有结构(S1)的三芳基铵自由基阳离子,其中每个R 11,R R 12,R 14,R 14,R 15,R 21,R,R 21, 22,R 23,R 24,R 25,R 31,R 1,R 3,R 5, R 32,R 33,R 34和R 35独立地选自 由氢,氘卤素,胺基,羟基,磺酸酯基,硝基和有机基团组成的基团,其中两个或多个R 11,R 12, R 13,R 14,R 15,R 21,R 22, R 23,R 24,R 25,R 31,R 32, R 33,R 34和R 35任选彼此连接形成环结构; 其中R 11,R 12,R 13,R 14,R 15中的一个或多个 R 21,R 22,R 23,R 24,R 25, R 31,R 32,R 33,R 34和R 51,其中R 31,R 32, 35与共聚物共价结合,其中A是阴离子。 p>
Abstract:
The present disclosure relates to a process for synthesizing a multi- or dual-headed composition by using an alpha,omega-diene and an organometallic compound in the presence of a catalyst precursor. The present disclosure further relates to use of the compositions, as well as the process to make the same, in olefin polymerization.
Abstract:
A polymer which has M n at least 4,000 and comprises polymerized units of a compound of formula NAr 1 Ar 2 Ar 3 ,wherein Ar 1 ,Ar 2 and Ar 3 independently are C 6 -C 50 aromatic substituents;Ar 1 ,Ar 2 and Ar 3 collectively contain at least two nitrogen atoms and at least 9 aromatic rings; and at least one of Ar 1 ,Ar 2 and Ar 3 contains a vinyl group attached to an aromatic ring.
Abstract translation:具有至少4,000的M n且包含式NAr 1 Ar 2 2化合物的聚合单元的聚合物, Ar 3,其中Ar 1,Ar 2和Ar 3独立地为C≡6, C 5 -C 50芳族取代基; Ar 1,Ar 2和Ar 3共同含有至少两个氮原子 原子和至少9个芳香环; 并且Ar 1,Ar 2和Ar 3中的至少一个含有连接到芳环上的乙烯基。 p>