决定性
发表于 2025-3-26 21:42:58
Coordination Chemistry of Silica Supported Cr Ions: Types of Cr(II) Ions on Reduced Samplesinds of ions to be diseriminated, so that relative populations, coordinative chemistry and polymerization ability can be established. Species A are definitely the most reactive and comprise the sites active for ethylene polymerization.
使绝缘
发表于 2025-3-27 04:44:19
Structural Analysis of Supported Chromium Systemsispersion and of the oxidation state of the supported chromium. To achieve this reconciliation it is necessary to review the data in the context of a range of chromium loadings on the support and for a wide range of calcination temperatures.
受辱
发表于 2025-3-27 05:58:04
Industrial Aspects of Olefin Metathesis/Polymerization Catalystsir Robert Robinson, even called it the most remarkable discovery since Ziegler-Natta polymerization . Actually, in its earliest roots, it can be traced back to the same origins; thus, metathesis is already older than quite a part of this audience.
ALB
发表于 2025-3-27 09:33:21
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串通
发表于 2025-3-27 16:08:32
Degradation of Polymers by Metathesis Catalysts investigation of copolymers, identification of isomeric structures in subsequently modified polymers, proof of a random distribution of the reaction sites in polymer-analogous reactions, and evidence of reactions at substituents. Application of metathesis degradation is in suitable cases superior to spectroscopic investigation methods.
Consequence
发表于 2025-3-27 18:59:49
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技术
发表于 2025-3-27 22:29:12
Electrochemical Generation of Catalysts for Alkene Metathesisal by-products and labelling experiments conducted with CD.Cl., it is shown that the metallacarbene initiator arises from a reaction between the transition metal salt and an organoaluminium compound generated in situ by an EC mechanism.
Comprise
发表于 2025-3-28 03:48:48
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步兵
发表于 2025-3-28 07:25:08
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legacy
发表于 2025-3-28 14:25:52
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