Aerobicoxidation reaction of amines to imines catalyzed by polymer-incarcerated Au nanoclusters (PI-Au) was developed. The effect of cluster size for this oxidation reaction was carefully examined...
开发了由聚合物包埋的 Au 纳米团簇 (PI-Au) 催化的胺到亚胺的有氧氧化反应。仔细检查了簇大小对这种氧化反应的影响......
Functionalized monomers for synthesis of rubbery polymers
申请人:——
公开号:US20040063884A1
公开(公告)日:2004-04-01
The present invention relates to a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one functionalized monomer of the structural formula:
1
wherein the R′ groups in repeat units and in different repeat units can be the same or different and represent hydrogen atoms or alkyl groups containing from 1 to about 4 carbon atoms, wherein x represents an integer from 1 to about 10, and wherein the R groups in repeat units and in different repeat units can be the same or different and represent alkyl groups containing from 1 to about 10 carbon atoms or alkoxy groups containing from 1 to about 10 carbon atoms.
CONJUGATED DIENE POLYMER PRODUCTION METHOD, AND CONJUGATED DIENE POLYMER COMPOSITION PRODUCTION METHOD
申请人:Sumitomo Chemical Company, Limited
公开号:US20150005440A1
公开(公告)日:2015-01-01
A method for producing a conjugated diene-based polymer is provided, in which compounds of formulas (2) and (3) and a conjugated diene compound are polymerized using a compound of formula (1), and then a compound containing a nitrogen atom and/or a silicon atom is reacted with an active end of the polymer formed via the polymerization,
R
11
represents a hydrocarbylene group, R
12
and R
13
each represent an optionally substituted hydrocarbyl group or a trihydrocarbylsilyl group, or R
12
is bonded to R
3
and the group in which R
12
is bonded to R
13
represents a hydrocarbylene group optionally having a nitrogen and/or oxygen atom, —Si(R
14
)
2
—(CH
2
)
x
—Si(R
14
)
2
—, or —Si(R
15
)
2
—(CH
2
)
y
−
, and M represents an alkali metal atom,
E
2
-A
2
(2)
E
3
-A
3
(3)
E
2
and E
3
each represent a hydrocarbyl group having a polymerizable carbon-carbon double bond, A
2
represents a substituted amino group or a nitrogen-containing heterocyclic group, and A
3
represents a substituted silyl group.
Styrenic block copolymer and process for producing same
申请人:IDEMITSU KOSAN COMPANY LIMITED
公开号:EP0570932A2
公开(公告)日:1993-11-24
There are disclosed a styrenic block copolymer having a reduced viscosity of 0.01 to 20 dl/g (0.05 g/l in 1,2,4-trichlorobenzene at 135°C) which comprises highly syndiotactic styrenic-polymer segments and 10⁻⁴ to 10 mol% of heteroatom-containing styrenic polymer segments; a resin composition comprising the above styrenic block copolymer and a thermoplastic resin, an inorganic filler or an organic filler; a multi-layer material comprising at least one layer composed of the above styrenic block copolymer or the above resin composition; and a process for producing the above styrenic block copolymer which comprises polymerizing a styrenic monomer in the presence of a specific catalyst and adding a heteroatom-containing styrenic monomer to successively proceed with copolymerizaiton reaction. The above-disclosed styrenic block copolymer and the resin composition exhibit excellent compatibiity and adhesivenesss, and the multi-layer material is expected to find a wide range of applications in automobile parts, electrical and electronic parts as well as film, sheet, etc.
本发明公开了一种苯乙烯嵌段共聚物,其粘度降低至 0.01 至 20 dl/g (在 135°C 的 1,2,4-三氯苯中为 0.05 g/l in 1,2,4-trichlorobenzene at 135°C)的苯乙烯嵌段共聚物,它由高度齐聚的苯乙烯聚合物段和 10-⁴ 至 10 摩尔%的含杂原子的苯乙烯聚合物段组成;一种树脂组合物,它由上述苯乙烯嵌段共聚物和一种热塑性树脂、一种无机填料或一种有机填料组成;一种多层材料,其中至少一层由上述苯乙烯嵌段共聚物或上述树脂组合物构成;以及一种生产上述苯乙烯嵌段共聚物的工艺,该工艺包括在特定催化剂存在下聚合苯乙烯单体,并加入含杂原子的苯乙烯单体以连续进行共聚反应。上述苯乙烯嵌段共聚物和树脂组合物具有优异的相容性和粘合性,多层材料有望广泛应用于汽车部件、电子电气部件以及薄膜、板材等领域。
PROCESS FOR PRODUCING FUNCTIONAL STYRENE COPOLYMER AND FUNCTIONAL STYRENE COPOLYMER
申请人:IDEMITSU PETROCHEMICAL CO., LTD.
公开号:EP1219649A1
公开(公告)日:2002-07-03
A process for producing a styrenic copolymer having a functional group and the syndiotactic configuration is provided. The process comprises bringing a metal compound into interaction with a vinyl compound having a functional group to mask the functional group and copolymerizing the vinyl compound having the masked functional group with a styrenic compound in the presence of a polymerization catalyst comprising (A) a transition metal compound, (B) at least one compound selected from compounds having oxygen and compounds which can form ionic complex compounds by reaction with the transition metal compound and (C) an organometallic compound. A styrenic copolymer which is a random, block or graft copolymer, preferably a random copolymer, of a vinyl compound having a functional group and a styrenic compound and has the repeating units derived from the styrenic compound having the syndiotactic configuration can be produced efficiently.
The above styrenic random copolymer exhibits excellent physical properties such as excellent adhesion with various adhesives and excellent compatibility with various rubbers and is advantageously used for various applications as various types of molded articles.