Compared with diolefine rubber,EPDM has less double bond.
与烯烃橡胶相比,EPDM
双键很少。
Compared with diolefine rubber,EPDM has less double bond.
与烯烃橡胶相比,EPDM
双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基山梨醇是一种
烯烃树脂
成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得叔碳酸钕具有对
烯烃良好
定向
合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题主要原因,是原料油性质在存储过程中
变化、
烯烃
合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭烯烃
共
物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解(RCM)研究新进展,包括了烯烃、烯-炔
RCM
。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对天冬氨酸
侧链进行改性,引入烷基或烯烃基、
活性高
氨基酸酯、磺酸基等功能性基团,使其得到更广泛
用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔基砜碳锌化
及其原位产
α-磺酰基烯基锌试剂在立体选择性合成多取代烯烃中
用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,苯乙烯阳离子交换树脂
苯环结构和烯烃基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有烯烃骨架β-苯基丙烯酸酯为中间体先引入双键,再经过三酮合环制备乙烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯烃和烯基芳烃是非常不稳定
组分,可
合产
凝胶。对于给定烯烃和烷基芳烃,氢化可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含双烯烃链节
合物加氢
催化剂
种类,讨论了SBS加氢
机理及加氢动力学
研究进展。
声明:以上例句、词性分类均由互联网资源自动成,部分未经过人工审核,其表达内容亦不代表本软件
观点;若
现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与烯烃橡胶相比,EPDM的双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基山梨醇是一种聚烯烃树脂的成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得的叔碳酸钕具有对烯烃良好的定向聚合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题的主要原因,是原料油性质在存储过程中发、
烯烃发
聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭烯烃的共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解(RCM)反应的研究新,
括了烯烃、烯-炔的RCM反应。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对聚天冬氨酸的侧链行改性,引入烷基或烯烃基、反应活性高的氨基酸酯、磺酸基等功能性基团,使其得到更广泛的应用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔基砜的碳锌反应及其原位产
的α-磺酰基烯基锌试剂在立体选择性合成多取代烯烃中的应用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳过程中,聚苯乙烯阳离子交换树脂的苯环结构和烯烃基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有烯烃骨架的β-苯基丙烯酸酯为中间体先引入双键,再经过三酮合环制备乙烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯烃和烯基芳烃是非常不稳定的组分,可聚合产
凝胶。对于给定烯烃和烷基芳烃,氢
可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双烯烃链节的聚合物加氢的催剂的种类,讨论了SBS加氢的机理及加氢动力学的研究
。
声明:以上例句、词性分类均由互联网资源自动成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与烯烃橡胶相比,EPDM
双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基
是一种聚烯烃树脂
成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得叔碳酸钕具有对
烯烃良好
定向聚合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题主要原因,是原料油性质在存储过程中发生变化、
烯烃发生聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭烯烃
共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解(RCM)反研究新进展,包括了烯烃、烯-炔
RCM反
。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对聚天冬氨酸侧链进行改性,引入烷基或烯烃基、反
活性高
氨基酸酯、磺酸基等功能性基团,使其得到更广
用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔基砜碳锌化反
及其原位产生
α-磺酰基烯基锌试剂在立体选择性合成多取代烯烃中
用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,聚苯乙烯阳离子交换树脂苯环结构和烯烃基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有烯烃骨架β-苯基丙烯酸酯为中间体先引入双键,再经过三酮合环制备乙烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯烃和烯基芳烃是非常不稳定
组分,可聚合产生凝胶。对于给定烯烃和烷基芳烃,氢化可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双烯烃链节聚合物加氢
催化剂
种类,讨论了SBS加氢
机理及加氢动力学
研究进展。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件观点;若发现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与烯烃橡胶相比,EPDM的双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基山梨醇是一种聚烯烃树脂的成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得的叔碳酸钕具有对烯烃良好的定向聚合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题的主要原因,是原料油性质在存储过程中发生变化、烯烃发生聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三橡胶(EPDM)是
烯、
烯和少量非共轭
烯烃的共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来分解(RCM)反应的研究新进展,包括了烯烃、烯-炔的RCM反应。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对聚天冬氨酸的侧链进行改性,引入烷基或烯烃基、反应活性高的氨基酸酯、磺酸基等功能性基团,使其得到更广泛的应用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔基砜的碳锌化反应及其原位产生的α-磺酰基烯基锌试剂在立体选择性合成多取代烯烃中的应用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,聚苯烯阳离子交换树脂的苯
结构和烯烃基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有烯烃骨架的β-苯基烯酸酯为中间体先引入双键,再经过三酮合
制备
烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯烃和烯基芳烃是非常不稳定的组分,可聚合产生凝胶。对于给定烯烃和烷基芳烃,氢化可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双烯烃链节的聚合物加氢的催化剂的种类,讨论了SBS加氢的机理及加氢动力学的研究进展。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与烯烃
相比,EPDM的双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基山梨醇
一种聚烯烃树脂的成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得的叔碳酸钕具有对烯烃良好的定向聚合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题的主要原因,原料油性质在存储过程中发生变化、
烯烃发生聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙(EPDM)
乙烯、丙烯和少量非共轭
烯烃的共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近关环复分解(RCM)反应的研究新进展,包括了烯烃、烯-炔的RCM反应。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对聚天冬氨酸的侧链进行改性,引入烷基或烯烃基、反应活性高的氨基酸酯、磺酸基等功能性基团,使其得到更广泛的应用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔基砜的碳锌化反应及其原位产生的α-磺酰基烯基锌试剂在立体选择性合成多取代烯烃中的应用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,聚苯乙烯阳离子交换树脂的苯环结构和烯烃基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有烯烃骨架的β-苯基丙烯酸酯为中间体先引入双键,再经过三酮合环制备乙烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯烃和烯基芳烃
非常不稳定的组分,可聚合产生凝
。对于给定烯烃和烷基芳烃,氢化可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双烯烃链节的聚合物加氢的催化剂的种类,讨论了SBS加氢的机理及加氢动力学的研究进展。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与烯
橡胶相比,EPDM
双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基山梨醇是一种聚烯
树脂
成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得叔碳酸钕具有对
烯
良好
定向聚合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题主要原因,是原料油性质在存储过程中
变化、
烯
聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭烯
共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解(RCM)反究新进展,包括了烯
、烯-炔
RCM反
。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对聚天冬氨酸侧链进行改性,引入烷基或烯
基、反
活性高
氨基酸酯、磺酸基等功能性基团,使其得到更广泛
用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文究了炔基砜
碳锌化反
及其原位产
α-磺酰基烯基锌试剂在立体选择性合成多取代烯
中
用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,聚苯乙烯阳离子交换树脂苯环结构和烯
基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有烯骨架
β-苯基丙烯酸酯为中间体先引入双键,再经过三酮合环制备乙烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯
和烯基芳
是非常不稳定
组分,可聚合产
凝胶。对于给定烯
和烷基芳
,氢化可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双烯链节
聚合物加氢
催化剂
种类,讨论了SBS加氢
机理及加氢动力学
究进展。
声明:以上例句、词性分类均由互联网资源自动成,部分未经过人工审核,其表达内容亦不代表本软件
观点;若
现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与橡胶相比,EPDM的双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄
山梨醇是一种聚
树脂的成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得的叔碳酸钕具有对好的定向聚合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题的主要原因,是原料油性质在存储过程中发生变化、发生聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶(EPDM)是乙、丙
和少量非共轭
的共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解(RCM)的研究新进展,包括了
、
-炔的RCM
。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对聚天冬氨酸的侧链进行改性,引入烷或
、
活性高的氨
酸酯、磺酸
等功能性
团,使其得到更广泛的
用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔砜的碳锌化
及其原位产生的α-磺酰
锌试剂在立体选择性合成多取代
中的
用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,聚苯乙阳离子交换树脂的苯环结构和
团比磺酸
团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有骨架的β-苯
丙
酸酯为中间体先引入双键,再经过三酮合环制备乙
吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
和
芳
是非常不稳定的组分,可聚合产生凝胶。对于给定
和烷
芳
,氢化可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双链节的聚合物加氢的催化剂的种类,讨论了SBS加氢的机理及加氢动力学的研究进展。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与烯烃橡胶相比,EPDM的双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基山梨醇是一种聚烯烃树脂的成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得的叔碳酸钕具有对烯烃良好的定向聚合活性。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题的主要因,是
料油性质在存储过程中发生变化、
烯烃发生聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭烯烃的共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解(RCM)反应的研究新进展,包括了烯烃、烯-炔的RCM反应。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以对聚天冬氨酸的侧链进行改性,引入烷基或烯烃基、反应活性高的氨基酸酯、磺酸基等功能性基团,使其得到更广泛的应用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔基砜的碳锌化反应及其生的α-磺酰基烯基锌试剂在立体选择性合成多取代烯烃中的应用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,聚苯乙烯阳离子交换树脂的苯环结构和烯烃基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用具有烯烃骨架的β-苯基丙烯酸酯为中间体先引入双键,再经过三酮合环制备乙烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯烃和烯基芳烃是非常不稳定的组分,可聚合
生凝胶。对于给定烯烃和烷基芳烃,氢化可以改善
品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双烯烃链节的聚合物加氢的催化剂的种类,讨论了SBS加氢的机理及加氢动力学的研究进展。
声明:以上、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
Compared with diolefine rubber,EPDM has less double bond.
与烯烃橡胶相比,EPDM
双键很少。
Dibenzylidene sorbitol is known as a gelling agent for polyolefln resin.
亚苄基山梨醇是一种聚烯烃树脂
成核剂。
The product has good catalytic property for the formation of diene stereospecific polymers.
制得叔碳酸钕
有
烯烃良好
定向聚合活
。
It is caused by the property change of feed stock in storage process and alkadiene polymerization.
造成这一问题主要原因,是原料油
质在存储过程中发生变化、
烯烃发生聚合。
Three Yuan second grade third rubbers (EPDM) is the ethylene, the propylene and the few non-conjugate diolefin copolymer.
三元乙丙橡胶(EPDM)是乙烯、丙烯和少量非共轭烯烃
共聚物。
Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.
综述了近几年来关环复分解(RCM)反应研究新进展,包括了烯烃、烯-炔
RCM反应。
PASP-PEG block structure copolymer,comb shaped PASP-PEG block structure copolymer,aspartic acid and glycine,glutamic acid or propalanine copolymer are prepared.
还可以聚天冬氨酸
侧链进行改
,引入烷基或烯烃基、反应活
氨基酸酯、磺酸基等功能
基团,使其得到更广泛
应用。
In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.
本论文研究了炔基砜碳锌化反应及其原位产生
α-磺酰基烯基锌试剂在立体选择
合成多取代烯烃中
应用。
The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene.
在碳化过程中,聚苯乙烯阳离子交换树脂苯环结构和烯烃基团比磺酸基团稳定。
Ethyl phenylacrylate intermediate bringing a double bond was introduced first,which is subsequently transformed into triketone and then DCM was obtained with high purity.
采用有烯烃骨架
β-苯基丙烯酸酯为中间体先引入双键,再经过三酮合环制备乙烯基吡喃。
The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.
烯烃和烯基芳烃是非常不稳定
组分,可聚合产生凝胶。
于给定烯烃和烷基芳烃,氢化可以改善产品质量。
The catalysts used to hydrogenate polymer containing polydiolefin units are introduced in this paper.The mechanism of SBS hydrogenation and the development of the kinetics are also referred to.
介绍了目前用于含聚双烯烃链节聚合物加氢
催化剂
种类,讨论了SBS加氢
机理及加氢动力学
研究进展。
声明:以上例句、词分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件
观点;若发现问题,欢迎向我们指正。