CN1160381C - 含双席夫碱配体的烯烃聚合催化剂及制备方法与应用 - Google Patents

含双席夫碱配体的烯烃聚合催化剂及制备方法与应用 Download PDF

Info

Publication number
CN1160381C
CN1160381C CNB011414723A CN01141472A CN1160381C CN 1160381 C CN1160381 C CN 1160381C CN B011414723 A CNB011414723 A CN B011414723A CN 01141472 A CN01141472 A CN 01141472A CN 1160381 C CN1160381 C CN 1160381C
Authority
CN
China
Prior art keywords
hydrogen
alkyl
formula
olefin
methyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB011414723A
Other languages
English (en)
Other versions
CN1408733A (zh
Inventor
ΰ
陈伟
钱延龙
郑刚
廉兵
黄吉玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
East China University of Science and Technology
Original Assignee
Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
East China University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinopec Research Institute of Petroleum Processing, China Petroleum and Chemical Corp, East China University of Science and Technology filed Critical Sinopec Research Institute of Petroleum Processing
Priority to CNB011414723A priority Critical patent/CN1160381C/zh
Priority to SG200205859A priority patent/SG95704A1/en
Priority to RU2002125718/04A priority patent/RU2317306C2/ru
Priority to ES200202188A priority patent/ES2219158B1/es
Priority to US10/256,028 priority patent/US6747105B2/en
Priority to KR10-2002-0058843A priority patent/KR100538007B1/ko
Priority to JP2002283696A priority patent/JP2003183317A/ja
Priority to SA02230451A priority patent/SA02230451B1/ar
Publication of CN1408733A publication Critical patent/CN1408733A/zh
Application granted granted Critical
Publication of CN1160381C publication Critical patent/CN1160381C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/72Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from metals not provided for in group C08F4/44
    • C08F4/74Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from metals not provided for in group C08F4/44 selected from refractory metals
    • C08F4/76Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from metals not provided for in group C08F4/44 selected from refractory metals selected from titanium, zirconium, hafnium, vanadium, niobium or tantalum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22Organic complexes
    • B01J31/2204Organic complexes the ligands containing oxygen or sulfur as complexing atoms
    • B01J31/2208Oxygen, e.g. acetylacetonates
    • B01J31/2226Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
    • B01J31/2243At least one oxygen and one nitrogen atom present as complexing atoms in an at least bidentate or bridging ligand
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/12Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
    • B01J31/14Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides of aluminium or boron
    • B01J31/143Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides of aluminium or boron of aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22Organic complexes
    • B01J31/2282Unsaturated compounds used as ligands
    • B01J31/2295Cyclic compounds, e.g. cyclopentadienyls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/26Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
    • B01J31/38Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F17/00Metallocenes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02Ethene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/10Polymerisation reactions involving at least dual use catalysts, e.g. for both oligomerisation and polymerisation
    • B01J2231/12Olefin polymerisation or copolymerisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/40Complexes comprising metals of Group IV (IVA or IVB) as the central metal
    • B01J2531/46Titanium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/40Complexes comprising metals of Group IV (IVA or IVB) as the central metal
    • B01J2531/48Zirconium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/40Complexes comprising metals of Group IV (IVA or IVB) as the central metal
    • B01J2531/49Hafnium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02Ethene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00Polymerisation catalysts
    • C08F4/42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62Refractory metals or compounds thereof
    • C08F4/64Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65912Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/943Polymerization with metallocene catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Rheumatology (AREA)
  • Pain & Pain Management (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

一种烯烃聚合催化剂,具有如式(I)所示的结构表达式,式(I)中R1选自氢、C1~C12的烷基、C1~C12的烷氧基或C6~C12的芳基,R2、R2′分别选自氢或C1~C4的烷基,R3选自氢、C1~C12的烷基、C1~C12烷氧基或C6~C12的芳基,M选自Ti、Zr或Hf。该催化剂适用于烯烃聚合,可得到高分子量和高共聚单体插入率的聚合产品。

Description

含双席夫碱配体的烯烃聚合催化剂及制备方法与应用
技术领域
本发明为一种烯烃聚合催化剂及制备方法与应用,具体地说,是一种含双席夫碱配体的过渡金属化合物及制备方法与该化合物作为主催化剂进行烯烃均聚或共聚的方法。
背景技术
在烯烃聚合领域,非茂类烯烃聚合催化剂与茂金属催化剂相比,在某些方面显示出一定的优势,如合成催化剂的配体范围大大拓宽,某些配合物可催化极性单体与α-烯烃共聚合,调控配体取代基可催化乙烯齐聚等。V.C.Gibson(Angew.Chem.Int.Ed.1999.38.P428)全面总结论述了各种非茂类烯烃聚合催化体系,其活性中心金属涉及第III至第X副族金属。CN1225645A中公开了用于烯烃聚合的二齿配体所形成的后过渡金属催化剂,其配体为亚胺类,中心金属选自第9~11族的金属。
EP0874005A中首次公开了一类双席夫碱[N,O]配位的烯烃聚合催化体系,该类配合物中的金属元素M选自3~11副族的金属,其公开的非桥联配合物具有如下的结构式:
Figure C0114147200041
式中R1选自氢、卤素或烷基,该专利特别指出,位于羟基邻位的取代基最好为卤素、C3~C20的带有支链的烷基,若这一位置无取代基或取代基为甲基、乙基等小的烷基,则其聚合活性较低。该类催化剂的主要优点是催化乙烯聚合时,催化活性与普通茂金属相当,而制得的聚乙烯分子量较用茂金属催化剂要高得多,且分子量分布较宽,其不足是共聚能力低,用于乙烯与α-烯烃共聚时,分子量下降幅度大,共聚单体插入率不足4重%。
茂金属催化体系的一个突出优点是具有非常好的共聚合能力。这对获得低密度聚乙烯塑性体,甚至弹性体非常有利。但是,茂金属催化剂的致命弱点在于催化乙烯与α-烯烃共聚合时,随着共聚单体插入率的增加,聚合物分子量下降很大,以至于很难获得同时具有高分子量和高共聚单体含量(高支化度)的聚乙烯。
发明内容
本发明的目的是提供一类含双席夫碱配体的烯烃聚合催化剂及该类催化剂的制备方法。
本发明的另一个目的是提供应用上述催化剂进行烯烃聚合的方法。
我们通过研究发现,在双席夫碱配体的过渡金属催化剂中,引入一个环戊二烯基配体,可使α-烯烃共聚合获得较高分子量、高共聚单体含量的聚烯烃产品。如用这种催化剂进行乙烯与己烯共聚合,在己烯插入率达到4.34重%时,聚合产品的分子量Mw可达57万。
具体实施方式
本发明提供的烯烃聚合催化剂,具有如式(I)所示的结构表达式,
Figure C0114147200051
式(I)中R1选自氢、C1~C12的烷基、C1~C12的烷氧基或C6~C12的芳基,R2、R2′分别选自氢或C1~C4的烷基,R3选自氢、C1~C12的烷基、C1~C12烷氧基或C6~C12的芳基,M选自Ti、Zr或Hf。
式(I)中R1是亚水杨基苯环上的取代基,优选氢或C1~C3的烷基,如甲基、乙基或丙基,取代位可为3~6位,优选3位或5位取代、即取代基位于羟基的邻位或对位。
式(I)中R2、R2′为苯胺环上的取代基,优选氢、甲基、乙基、丙基、异丙基、正丁基或异丁基。R2、R2′可相同或不同,二者相同时,优选同时为氢、甲基或异丙基,二者不同时,优选一个取代基为氢或C1~C4的烷基,另一个取代基为C1~C4的烷基,如一个取代基为氢,另一个取代基为甲基、乙基或丙基。
R3为环戊二烯骨架上的取代基,优选氢或C1~C4的烷基,如甲基、乙基,更为优选的是氢。
M为过渡金属,优选Ti。
本发明所述催化剂的制备方法,包括如下步骤:
(1)将式(II)所示的席夫碱配体化合物与烷基碱金属化合物在有机介质中反应,生成席夫碱配合物的碱金属盐,式(II)中R1选自氢、C1~C12的烷基、C1~C12的烷氧基或C6~C12的芳基,R2、R2′选自氢或C1~C4的烷基,
Figure C0114147200061
(2)将席夫碱配合物的碱金属盐在有机介质中与表达式为CpMCl3的环戊二烯基金属氯化物反应,除去溶剂,残余物用有机溶剂洗涤、过滤,将滤液重结晶;所述CpMCl3中M为Ti、Zr或Hf,Cp为单取代的环戊二烯基,取代基R3选自氢、C1~C12的烷基、C1~C12烷氧基或C6~C12的芳基。
所述(1)步为制备配体碱金属盐的反应,其适宜的反应温度为-78~25℃,特别是反应开始时应保持低温,以保证反应温度不会过快升高,防止生成副产物。所述的烷基碱金属化合物优选烷基锂,更优选丁基锂。合成配体盐时,配体与烷基金属化合物的摩尔比为0.1~2.0∶1,反应时间优选0.1~24小时。
(2)步反应的适宜温度为-78~25℃,时间优选0.5~24小时。反应时席夫碱配合物的碱金属盐与CpMCl3的摩尔比为1.0~2.0∶1。CpMCl3化合物中M优选钛,Cp优选环戊二烯基。
上述(1)、(2)两步中所用有机介质选自四氢呋喃或乙醚,优选四氢呋喃。(2)步用于洗涤的有机溶剂选自乙醚、苯、甲苯、正己烷、石油醚或它们的混合物。
制备(1)步式(II)所示配合物的方法为:将式(II)所示结构式中相应的苯胺化合物,如苯胺、2,6-二异丙基苯胺与相应的水杨醛化合物按等摩尔比在乙醇中缩合脱水,反应在回流温度下进行,时间为0.1~10小时即可。反应完毕,降至室温,将析出固体过滤、除去溶剂,即得式(II)的配体化合物。
本发明优选的配体化合物有:亚水杨基苯胺、亚水杨基2,6-二异丙基苯胺、亚水杨基2-异丙基苯胺、亚水杨基2,6-二甲基苯胺、亚水杨基2,6-二乙基苯胺、5-甲基亚水杨基苯胺、5-甲基亚水杨基2,6-二异丙基苯胺、5-乙基亚水杨基2,6-二异丙基苯胺。
所述(2)步CpMCl3化合物可用如下方法制备:在有机介质存在下使环戊二烯及其衍生物的钠盐与MCl4按等摩尔比进行反应即可。
本发明催化剂适用于α-烯烃均聚或共聚。聚合方法是以本发明催化剂为主催化剂,以烷基铝氧烷为助催化剂,使α-烯烃或α-烯烃与共聚单体在10~110℃,0.1~1.0MPa条件下聚合。聚合时助催化剂中的铝与主催化剂中的金属摩尔比为100~1500∶1,优选200~1000∶1。
聚合使用的α-烯烃优选乙烯或丙烯,共聚单体优选丁烯、己烯或辛烯。聚合方式可为本体聚合、淤浆聚合或气相聚合。
下面通过实例进一步说明本发明,但本发明不限于此。
                          实例1
制备二(亚水杨基苯胺基)-(环戊二烯基)氯化钛。
(1)制备配体化合物亚水杨基苯胺
取24.4g(0.2mol)水杨醛(中国医药(集团)上海化学试剂公司)和18.63g(0.2mol)苯胺(中国上海试剂一厂)加入到100ml乙醇介质中,搅拌下加热至回流,反应2小时,冷却至室温,即有大量晶体产生。过滤、固体用30ml乙醇溶剂重结晶,得到黄绿色晶体,即配体亚水杨基苯胺37.5g。产率95%。
(2)制备亚水杨基苯胺的锂盐
在100ml Schlenk瓶中加入2.686g(13.6mmol)亚水杨基苯胺和30ml四氢呋喃,将溶液冷却至-70℃,在搅拌下滴加6.77ml(2.0113mol·L-1,13.6mmol)丁基锂,滴加完毕,自然升至室温,搅拌3小时,得亚水杨基苯胺锂盐的四氢呋喃溶液。
(3)制备催化剂
将上述亚水杨基苯胺锂盐的四氢呋喃溶液,冷却至-70℃,并在该温度下慢慢滴加到2.987g(13.6mmol)CpTiCl3的30ml四氢呋喃溶液中,然后自然升至室温,搅拌过夜。减压下将反应液抽干,加入100ml乙醚,过滤,将滤液在-20℃放置18小时,析出1.84g棉花状的晶体催化剂A:二(亚水杨基苯胺)-(环戊二烯基)氯化钛,产率25%。分子式:C31H25O2N2TiCl,结构式如下:
Figure C0114147200081
元素分析值(重%)为
计算值:C 68.83,H 4.67,N 5.18
实测值:C 68.51,H 4.87,N 5.30
1H NMR(CDCl3,δ,ppm)分析值:8.07~7.99(m,2H,CH=N),7.42~6.05(m,18H,arom),6.56(s,5H,C5H5)
M.S.113(CpTi+),65(Cp+)
红外光谱分值:1606(s),1550(m),1472(m),1291(m),1186(w),1122(w),906(w),860(w),696(w)
                           实例2
制备二(亚水杨基邻异丙基苯胺基)-(环戊二烯基)氯化钛。
(1)制备配体化合物亚水杨基邻异丙基苯胺
按实例1的方法制备,不同的是用27g(0.2mol)邻异丙基苯胺(中国上海试剂一厂)代替苯胺进行反应,最终得到配体亚水杨基邻异丙基苯胺45g,产率94%。
(2)制备亚水杨基邻异丙基苯胺的锂盐
在100ml Schlenk瓶中加入2.872g(12mmol)亚水杨基邻异丙基苯胺和30ml四氢呋喃,将溶液冷却至-70℃,在搅拌下滴加5.97ml(2.0113mol·L-1,12mmol)丁基锂,滴加完毕,自然升至室温,搅拌3小时,得亚水杨基邻异丙基苯胺锂盐的四氢呋喃溶液。
(3)制备催化剂
将上述亚水杨基邻异丙基苯胺锂盐的四氢呋喃溶液,冷却至-70℃,并在该温度下慢慢滴加到2.631g(12mmol)CpTiCl3的30ml四氢呋喃溶液中,然后自然升至室温,搅拌过夜。减压下将反应液抽干,加入100ml乙醚,过滤,将滤液在-40℃放置18小时,析出1.68g棉花状的晶体催化剂B:(亚水杨基邻异丙基苯胺基)-(环戊二烯基)氯化钛,产率45%。分子式:C37H39O2N2TiCl,分子结构
Figure C0114147200091
元素分析值(重%)为
计算值:C 71.09,H 5.98,N 4.48
实测值:C 71.01,H 6.05,N 4.61
1HNMR(CDCl3,δ,ppm)分析值:8.06~7.97(m,2H,CH=N),7.40~6.12(m,16H,arom),6.60(s,5H,C5H5);2.99~2.80(m,2H,CH(CH3)2),1.20~1.05(m,12H,CH(CH3)2
M.S.:113(CpTi+),65(Cp+)
红外光谱分值:1604(s),1553(m),1471(m),1290(m),1188(w),1120(w),905(w),868(w),695(w)。
                          实例3
制备二(5-甲基亚水杨基苯胺基)-(环戊二烯基)氯化钛。
(1)制备配体化合物5-甲基亚水杨基苯胺
按实例1的方法制备,不同的是用27.2g(0.2mol)5-甲基水杨醛(中国医药(集团)上海化学试剂公司)代替水杨醛进行反应,最终得到配体5-甲基亚水杨基苯胺40g,产率95%。
(2)制备5-甲基亚水杨基苯胺的锂盐
在100ml Schlenk瓶中加入2.662g(12.6mmol)5-甲基亚水杨基苯胺和30ml四氢呋喃,将溶液冷却至-70℃,在搅拌下滴加6.26ml(2.0113mol·L-1,12.6mmol)丁基锂,滴加完毕,自然升至室温,搅拌3小时,得5-甲基亚水杨基苯胺锂盐的四氢呋喃溶液。
(3)制备催化剂
将上述5-甲基亚水杨基苯胺锂盐的四氢呋喃溶液,冷却至-70℃,并在该温度下慢慢滴加到2.764g(12.6mmol)CpTiCl3的30ml四氢呋喃溶液中,然后自然升至室温,搅拌过夜。减压下将反应液抽干,加入100ml乙醚,过滤,将滤液在-20℃放置18小时,析出1.75g棉花状的晶体催化剂C:二(5-甲基亚水杨基苯胺基)-(环戊二烯基)氯化钛,产率49%。分子式:C32H28O2N2TiCl,分子结构式如下:
催化剂C的元素分析值(重%)为
计算值:C 69.66,H 5.15,N 4.92
实测值:C 69.50,H 5.20,N 4.98
1HNMR(CDCl3,δ,ppm)分析值:8.05~7.99(m,2H,CH=N),7.41~6.10(m,16H,arom),6.58(s,5H,C5H5);2.31~2.20(m,6H,CH3)
M.S.:113(CpTi+),65(Cp+)
红外光谱分值:1606(s),1554(m),1473(m),1292(m),1189(w),1120(w),906(w),866(w),696(w)。
                         实例4
制备二(亚水杨基苯胺基)-(甲基环戊二烯基)氯化钛。
(1)制备亚水杨基苯胺的锂盐
在100ml Schlenk瓶中加入2.367g(12mmol)亚水杨基苯胺和30ml四氢氢呋喃,将溶液冷却至-70℃,搅拌下滴加3.83ml(2.0113mol·L-1,7.7mmo1)丁基锂,滴加完毕,自然升至室温,搅拌3小时,制得亚水杨基苯胺的锂盐溶液。
(2)制备催化剂
将上述亚水杨基苯胺锂盐的四氢呋喃溶液,冷却至-70℃,并在该温度下慢慢滴加到2.8g(12mmol)MeCp TiCl3的30ml四氢呋喃溶液中,然后自然升至室温,搅拌过夜。减压下将反应液抽干,加入100ml乙醚,过滤,将滤液在-20℃放置18小时,析出1.72g棉花状的晶体催化剂D:二(亚水杨基苯胺)-(环戊二烯基)氯化钛,产率52%。分子式:C32H27O2N2TiCl,分子结构式如下:
Figure C0114147200111
元素分析值(重%)为
计算值:C 69.26,H 4.91,N 5.04
实测值:C 69.10,H 4.98,N 5.25
1H NMR(CDCl3,δ,ppm)分析值:8.05~7.99(m,2H,CH=N),7.40~6.10(m,18H,arom),6.79~6.60(m,2H,Cp),6.68~6.50(m,2H,Cp),2.49~2.40(m,3H,CH3Cp)
M.S.127(MeCpTi+),79(MeCp+)
红外光谱分值:1603(s),1553(m),1470(m),1292(m),1188(w),1123(w),906(w),867(w),697(w)
                          对比例1
合成双席夫碱配体的催化剂E
在100ml Schlenk瓶中加入1.519g(7.7mmol)的亚水杨基苯胺和30ml四氢呋喃,将溶液冷却至-70℃,搅拌下滴加3.83ml(2.0113mol·L-1,7.7mmol)丁基锂,滴加完毕,自然升至室温,搅拌3小时,制得亚水杨基苯胺的锂盐溶液。
将上述锂盐的四氢呋喃溶液,在-70℃慢慢滴加到1.689g(7.7mmol)TiCl4的30ml四氢呋喃溶液中,滴加完毕,自然升至室温,搅拌过夜。减压下抽干反应液,加入150ml乙醚,过滤,将滤液抽干,得1.2g固体的催化剂E:二(亚水杨基苯胺)二氯化钛,分子式C26H20O2N2TiCl2,产率61%。
1H NMR(CDCl3,δ,ppm)8.30(s,1H,CH=N),7.52(t,J=7.4,1H,arom),7.42(d,J=7.4,1H,arom),7.32(d,J=7.4,1H,arom),7.23(m,J=7.4,3H,arom),7.01(t,J=7.4,1H,arom),6.79(t,J=2.6,2H,Cp),6.68(t,J=2.6,2H,Cp),2.99(m,J=6.8,2H,CH(CH3)2),2.49(s,3H,CH3Cp),1.2(d,J=6.8,12H,CH(CH3)2)。
                        对比例2
制备二(正丁基环戊二烯基)二氯化锆
在冰水浴冷却下,边搅拌边向含11.0克(0.09摩尔)正丁基环戊二烯的100毫升四氢呋喃(THF)溶液中缓慢滴加36.7毫升(0.09摩尔)丁基锂的2.5M己烷溶液,滴加完毕后继续搅拌1小时,得到正丁基环戊二烯基锂的白色浑浊溶液。
在-78℃,向上述获得的正丁基环戊二烯基锂溶液中缓慢加入10.485克(0.045摩尔)ZrCl4,滴加完毕后室温搅拌过夜,得深红色浑浊溶液。除去90%的溶剂,残余物用100毫升甲苯溶解后过滤、重结晶,得催化剂F:二(正丁基环戊二烯基)二氯化锆12.7g,反应收率为70%。
                           实例5~11
以下实例进行乙烯均聚反应。
将250ml玻璃瓶用氮气和乙烯分别置换三次,加入100ml干燥的甲苯,补加乙烯至吸收平衡,将体系升温至反应温度,加入催化剂和甲基铝氧烷(MAO)的甲苯溶液,使铝与催化剂含有的金属摩尔比为1000,不断补加乙烯,常压下反应1小时,用3%的盐酸乙醇溶液终止反应,过滤,产物于80℃、真空下干燥3小时,得到聚合物。反应温度、催化剂活性及聚合物性质见表1,其中重均分子量和分子量分布均用凝胶色谱法(GPC)测定。
                           实例12~17
以下实例进行乙烯与己烯的共聚反应。
向用氮气和乙烯置换好的250ml玻璃瓶中加入100ml干燥的甲苯,补加乙烯至吸收平衡,将体系升温至50℃,加入5ml己烯,少量催化剂和MAO的甲苯溶液,使铝与催化剂含有的金属摩尔比为1000,不断补加乙烯,常压下反应1小时后,用3%的盐酸乙醇溶液终止反应,过滤,产物于80℃、真空下干燥3小时,得到聚合物。各实例催化剂活性及聚合物性质见表2,其中聚合物己烯含量用核磁共振13C-NMR测得。
由表1、表2数据可知,本发明催化剂用于乙烯均聚时,活性较配体中无大的取代集团的双席夫碱配体催化剂E的活性高,聚合物重均分子量和分子量分布基本相当,较之茂金属催化剂F制得的聚合物具有较大的分子量。本发明催化剂用于乙烯与己烯共聚时,得到的聚合物不仅有高的共聚单体含量,而且还有高的聚合分子量,使聚合物的性能更适宜加工生产的需要。
表1
实例号     催化剂编号   反应温度,℃ 催化剂加量,μmol   催化剂活性,gPE/molM·h Mw Mw/Mn
    5     A     30     32.0     4.0×104     -     -
    6     A     50     32.0     4.38×104     167×104     3.2
    7     B     50     30.0     5.1×104     160×104     3.0
    8     C     50     28.5     3.95×104     175×104     2.95
    9     D     50     29.2     4.5×104     170×104     2.90
    10     E     50     29.72     0.64×104     161×104     2.85
    11     F     50     10.0     4.1×105     11×104     2.65
表2
  实例号   催化剂编号   反应温度,℃   催化剂加量,μmol     催化剂活性,gPE/molM·h Mw Mw/Mn 聚合物中己烯含量,重%
  12   A   50   17.05     1.76×105   57×104   2.73     4.34
  13   B   50   18.00     2.1×105   53×104   2.70     4.30
  14   C   50   20.12     1.5×105   60×104   2.81     4.18
  15   D   50   18.5     1.9×105   59×104   2.67     4.52
  16   E   50   23.24     0.581×105   34×104   2.55     3.27
  17   F   50   3.1     9×105   4.75×104   3.0     6.80
*注:表1、表2中M为钛或锆

Claims (9)

1、一种烯烃聚合催化剂,具有如式(I)所示的结构表达式,
Figure C0114147200021
式(I)中R1选自氢、C1~C12的烷基、C1~C12的烷氧基或C6~C12的芳基,R2、R2′分别选自氢或C1~C4的烷基,R3选自氢、C1~C12的烷基、C1~C12烷氧基或C6~C12的芳基,M选自Ti、Zr或Hf。
2、按照权利要求1所述的催化剂,其特征在于式(I)中R1选自氢、C1~C3的烷基,R2、R2′分别选自氢、甲基、乙基、丙基、异丙基、正丁基或异丁基,R3选自氢或C1~C4的烷基,M选自Ti。
3、按照权利要求1或2所述的催化剂,其特征在于式(I)中R1为氢或甲基,R2、R2′分别为氢、甲基、乙基或异丙基,R3为氢,M为Ti。
4、权利要求1所述催化剂的制备方法,包括如下步骤:
(1)将式(II)所示的席夫碱配体化合物与烷基碱金属化合物在有机介质中反应,生成席夫碱配合物的碱金属盐,式(II)中R1选自氢、C1~C12的烷基、C1~C12的烷氧基或C6~C12的芳基,R2、R2′分别选自氢或C1~C4的烷基,所述配体与烷基金属化合物的摩尔比为0.1~2.0∶1,
(2)将席夫碱配合物的碱金属盐在有机介质中与表达式为CpMCl3的环戊二烯基金属氯化物反应,除去溶剂,残余物用有机溶剂洗涤、过滤,将滤液重结晶;所述CpMCl3中M为Ti、Zr或Hf,Cp为单取代的环戊二烯基,取代基R3选自氢、C1~C12的烷基、C1~C12烷氧基或C6~C12的芳基,所述席夫碱配合物的碱金属盐与CpMCl3的摩尔比为1.0~2.0∶1。
5、按照权利要求4所述的方法,其特征在于(1)步反应温度为-78~25℃,所述的烷基碱金属化合物为丁基锂。
6、按照权利要求4所述的方法,其特征在于(2)步的反应温度为-78~25℃,CpMCl3化合物为环戊二烯基三氯化钛或甲基环戊二烯基三氯化钛。
7、按照权利要求4所述的方法,其特征在于所述的有机介质选自四氢呋喃或乙醚,(2)步用于洗涤的有机溶剂选自乙醚、苯、甲苯、正己烷、石油醚或它们的混合物。
8、一种α-烯烃均聚或共聚方法,其特征在于以权利要求1所述的催化剂为主催化剂,以烷基铝氧烷为助催化剂,使α-烯烃或α-烯烃与共聚单体在10~110℃,0.1~1.0MPa下聚合,聚合时助催化剂中的铝与主催化剂中的金属摩尔比为100~1500∶1。
9、按照权利要求8所述的方法,其特征在于所述α-烯烃选自乙烯或丙烯,共聚单体选自丁烯、己烯或辛烯。
CNB011414723A 2001-09-27 2001-09-27 含双席夫碱配体的烯烃聚合催化剂及制备方法与应用 Expired - Lifetime CN1160381C (zh)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CNB011414723A CN1160381C (zh) 2001-09-27 2001-09-27 含双席夫碱配体的烯烃聚合催化剂及制备方法与应用
RU2002125718/04A RU2317306C2 (ru) 2001-09-27 2002-09-26 Монометаллоценовый катализатор для полимеризации олефинов, содержащий бис-лиганд основания шиффа, способ его получения и его применение
ES200202188A ES2219158B1 (es) 2001-09-27 2002-09-26 Un catalizador de la polimerizacion de olefinas monometaloceno que contiene bis-ligando base de schiff, su procedimiento de preparacion y aplicacion.
SG200205859A SG95704A1 (en) 2001-09-27 2002-09-26 A bis-schiff base ligand-containing mon-metallocene olefin polymerization catalyst, its preparation process and application
US10/256,028 US6747105B2 (en) 2001-09-27 2002-09-27 Bis-Schiff base ligand-containing mono-metallocene olefin polymerization catalyst, its preparation process and application
KR10-2002-0058843A KR100538007B1 (ko) 2001-09-27 2002-09-27 비스-시프 염기 리간드를 포함하는 모노-메탈로센 올레핀중합촉매, 그의 제조 방법 및 응용
JP2002283696A JP2003183317A (ja) 2001-09-27 2002-09-27 ビス−シッフ塩基配位子を含むモノ−メタロセンオレフィン重合触媒、その製造法および用途
SA02230451A SA02230451B1 (ar) 2001-09-27 2002-11-24 محفز catalyst أحادى الميتالوسين mono-metallocene مرتبط بقاعدة شيف Schiff base مزدوجة يستخدم لبلمرة الأوليفين olefin polymerization وعملية لتحضيره واستخدامه

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB011414723A CN1160381C (zh) 2001-09-27 2001-09-27 含双席夫碱配体的烯烃聚合催化剂及制备方法与应用

Publications (2)

Publication Number Publication Date
CN1408733A CN1408733A (zh) 2003-04-09
CN1160381C true CN1160381C (zh) 2004-08-04

Family

ID=4676202

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB011414723A Expired - Lifetime CN1160381C (zh) 2001-09-27 2001-09-27 含双席夫碱配体的烯烃聚合催化剂及制备方法与应用

Country Status (8)

Country Link
US (1) US6747105B2 (zh)
JP (1) JP2003183317A (zh)
KR (1) KR100538007B1 (zh)
CN (1) CN1160381C (zh)
ES (1) ES2219158B1 (zh)
RU (1) RU2317306C2 (zh)
SA (1) SA02230451B1 (zh)
SG (1) SG95704A1 (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI246520B (en) * 1997-04-25 2006-01-01 Mitsui Chemicals Inc Processes for olefin polymerization
CN1186125C (zh) * 2002-06-18 2005-01-26 中国科学院成都有机化学研究所 用于氧化偶联萘酚的手性催化剂
ATE540061T1 (de) * 2004-11-16 2012-01-15 Daikin Ind Ltd Feines pulver aus modifiziertem polytetrafluorethylen und formkörper aus modifiziertem polytetrafluorethylen
CN100441602C (zh) * 2005-04-22 2008-12-10 中国石油化工股份有限公司 一种制备宽/双峰分布高密度聚乙烯的复合催化体系
KR100672688B1 (ko) 2005-06-07 2007-01-22 동부일렉트로닉스 주식회사 씨모스 이미지 센서의 제조방법
JP4658700B2 (ja) * 2005-06-09 2011-03-23 三井化学株式会社 遷移金属化合物
GB0625865D0 (en) 2006-12-29 2007-02-07 Oled T Ltd Electro-optical or opto-electronic device
CN100586966C (zh) * 2007-12-06 2010-02-03 中国科学院长春应用化学研究所 一种双水杨醛亚胺钒烯烃聚合催化剂及制备方法和应用
CN102153586B (zh) * 2011-01-25 2013-11-06 浙江大学宁波理工学院 含磷、氮及过渡金属元素类化合物及其制备方法
WO2013036550A1 (en) * 2011-09-07 2013-03-14 Dow Corning Corporation Hafnium containing complex and condensation reaction catalysts, methods for preparing the catalysts, and compositions containing the catalysts
JP6141286B2 (ja) 2011-10-10 2017-06-07 リライアンス インダストリーズ リミテッドReliance Industries Ltd. エチレン重合体を合成するプロセス
CN112126074B (zh) * 2020-09-22 2021-08-31 中国科学院化学研究所 一种HfC/C陶瓷前驱体聚合物及其制备方法
CN115260343B (zh) * 2022-08-02 2023-07-14 中国科学技术大学 含水杨醛亚胺配体的单茂金属催化剂及其制备方法和应用

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1237398B (it) * 1989-01-31 1993-06-01 Ausimont Srl Catalizzatori per la polimerizzazione di olefine.
US5721185A (en) * 1991-06-24 1998-02-24 The Dow Chemical Company Homogeneous olefin polymerization catalyst by abstraction with lewis acids
DE4415872A1 (de) 1994-05-05 1995-11-09 Huels Chemische Werke Ag Verfahren zur Herstellung von Ethylencopolymeren
US5637660A (en) * 1995-04-17 1997-06-10 Lyondell Petrochemical Company Polymerization of α-olefins with transition metal catalysts based on bidentate ligands containing pyridine or quinoline moiety
WO1997008179A1 (fr) * 1995-08-31 1997-03-06 Sumitomo Chemical Company, Limited Complexes de metaux de transition, catalyseur de polymerisation des olefines et procede de production de polymeres d'olefines
US5811379A (en) 1996-06-17 1998-09-22 Exxon Chemical Patents Inc. Polymers derived from olefins useful as lubricant and fuel oil additives, processes for preparation of such polymers and additives and use thereof (PT-1267)
CA2257796C (en) 1996-06-17 2006-01-24 Exxon Chemical Patents, Inc. Supported late transition metal catalyst systems
TWI246520B (en) * 1997-04-25 2006-01-01 Mitsui Chemicals Inc Processes for olefin polymerization
FI973451A0 (fi) * 1997-08-22 1997-08-22 Borealis As Ny organometalfoerening och metod foer polymerisation av olefiner med hjaelp av en katalytkomposition som innehaoller denna organometalfoerening
JP4090100B2 (ja) * 1998-02-27 2008-05-28 出光興産株式会社 アルミニウム化合物およびその製造方法、オレフィン重合体製造用触媒並びにオレフィン重合体の製造方法

Also Published As

Publication number Publication date
KR100538007B1 (ko) 2005-12-20
US20030096927A1 (en) 2003-05-22
RU2002125718A (ru) 2004-03-27
ES2219158A1 (es) 2004-11-16
RU2317306C2 (ru) 2008-02-20
KR20030027813A (ko) 2003-04-07
JP2003183317A (ja) 2003-07-03
CN1408733A (zh) 2003-04-09
SG95704A1 (en) 2003-04-23
ES2219158B1 (es) 2006-01-01
SA02230451B1 (ar) 2007-03-25
US6747105B2 (en) 2004-06-08

Similar Documents

Publication Publication Date Title
CN1139604C (zh) 有载体的烯烃聚合催化剂
CN1160381C (zh) 含双席夫碱配体的烯烃聚合催化剂及制备方法与应用
CN1285622C (zh) 被载体支持的膦亚胺聚合催化剂
CN1107859A (zh) 烯烃聚合方法
CN1492883A (zh) 烯烃聚合催化剂
CN1284626C (zh) 用于烯烃聚合的氟化两性离子助催化剂活化剂
CN1235919C (zh) 聚合方法
CN1179983C (zh) 非茂金属聚烯烃催化剂及其制备方法
CN1178949C (zh) 作为聚合催化剂的环戊二烯基过渡金属配合物
CN1136239C (zh) 卤化镁/二氧化硅负载的半茂金属催化剂及其制备与应用
CN1125088C (zh) 配体中含氮杂茂的过渡金属催化剂及制法与应用
CN1267439C (zh) 催化剂组合物和聚合方法
CN101045737A (zh) 桥联茂金属双核催化剂及其制备方法与应用
CN1168744C (zh) 含单席夫碱配体的催化剂及制备与用于烯烃聚合的方法
CN1132856C (zh) 半茂金属烯烃聚合催化剂及其制法与应用
CN1166697C (zh) 一种双核茂金属化合物及其制备与在烯烃聚合中的应用
CN101029096A (zh) 中性非桥联茂金属铬催化剂及其用途
CN1867594A (zh) 烯烃聚合方法
CN1167716C (zh) 一种制备线性低密度聚乙烯的原位共聚催化剂体系
CN1249762A (zh) 聚合方法
CN1850871A (zh) 一种制备宽/双峰分布高密度聚乙烯的复合催化体系
CN1128820C (zh) 配体中含吡咯环的聚烯烃催化剂及其制法与应用
CN1176118C (zh) 以西佛碱为配体的负载型烯烃聚合催化剂及制备
CN1769310A (zh) 一种用于乙烯聚合和共聚合前过渡金属催化体系、其制备方法和应用
CN101045739A (zh) 茂金属Ti-稀土异双核催化剂及其制备方法与应用

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20040804

CX01 Expiry of patent term