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Polymerization coordinated

In their polymerization, many individual alkene molecules combine to give a high molecular weight product Among the methods for alkene polymerization cationic polymerization coordination polymerization and free radical polymerization are the most important An example of cationic polymerization is... [Pg.274]

Polymeric coordination compounds. 1. Haiduc, Russ. Chem. Rev. (Engl. Transl.), 1961, 30,498-526 (483). [Pg.56]

A very broad range of initiators and catalysts are reported in the scientific literature to polymerize lactones. The polymerization mechanisms can be roughly divided into five categories, i.e., anionic polymerization, coordination polymerization, cationic polymerization, organocatalytic polymerization, and enzymatic polymerization. [Pg.179]

Figure 53 Crystal structure of (CioH26N2)[(U02)3(C7Hio04)5]-2H20 depicting the polymeric coordination of the (Zhang, Collison et al. Polyhedron 2002, 21, 81-96). Figure 53 Crystal structure of (CioH26N2)[(U02)3(C7Hio04)5]-2H20 depicting the polymeric coordination of the (Zhang, Collison et al. Polyhedron 2002, 21, 81-96).
The reactive intermediates used in chain-growth polymerizations include radicals, carbanions, carbocations, and organometallic complexes. Of the three common metal catalyzed polymerizations - coordination-insertion, ring-opening metathesis and diene polymerization - the last appears to possess the greatest tolerance toward protic solvents. The polymerization of butadiene in polar solvents was first reported in 1961 using Rh salts [18]. It was discovered that these polymerizations could be performed in aqueous solution with an added emulsifier (sodium dodecyl sulfate, for example). [Pg.1278]

The above examples are relatively simple, since they contain just two types of atom and adopt symmetrical shapes. It should be anticipated that many examples will prove much more complicated in structure. Although polymeric coordination compounds are growing in number and importance, we shall limit our exploration of these, leaving this to more advanced textbooks. [Pg.75]

This chapter presents various examples of enzyme catalysis by polymers including ester hydrolysis, decomposition of hydrogen peroxide, oxidation of disubstituted phenols and hydroquinone, interfacial catalysis and other types of reaction. Because metal ions (Fe, Zn, Cu. Mn, Co, etc.) are often involved as coferments during enzyme catalysis, some examples illustrating their catalytic action are also given. The catalytic activity of polymeric coordination compounds is shown to depend on the strength of the ligand-metal bond. [Pg.1]

Figure 16. TG curve of the polymeric coordination compound [CuS(4,4 -bipy)]n. Reproduced from reference [159] with permission from Elsevier. Figure 16. TG curve of the polymeric coordination compound [CuS(4,4 -bipy)]n. Reproduced from reference [159] with permission from Elsevier.
PREPARATIVE TECHNIQUES Type of polymerization coordination pwlymerization. [Pg.493]

Polystyrene Polyisoprene (cis) Polyisobutylene CH2=CHPh CH, CH2=CH-C=CH2 CHj / CH2=C CHa peroxide-catalyzed radical-chain polymerization coordination or butyllithium-catalyzed anionic polymerization low-temperature cationic polymerization, BF3 and AIQ3 catalysis... [Pg.470]

The kinetics of chain-reaction polymerization is illustrated in Fig. 3.28 for a free radical process. Analogous equations, except for termination, can be written for ionic polymerizations. Coordination reactions are more difficult to describe since they may involve solid surfaces, adsorption, and desorption. Even the crystallization of the macromolecule after polymerization may be able to influence the reaction kinetics. The rate expressions, as given in Appendix 7, Fig. A7.1, are easily written under the assumption that the chemical equations represent the actual reaction path. Most important is to derive an equation for the kinetic chain length, v, which is equal to the ratio of propagation to termination-reaction rates. This equation permits computation of the molar mass distribution (see also Sect. 1.3). The concentration of the active species is very small and usually not known. First one must, thus, ehminate [M ] from the rate expression, as shown in the figure. The boxed equation is the important equation for v. [Pg.212]

The vast majority of the polymers are produced using a few classes of polymerizations (coordination polymerization, free-radical polymerization and step-growth polymerization). The type of polymerization determines not only the kind of polymer obtained, but also the reactor configuration and the way in which the process is conducted. Therefore, the book is organized according to the type of polymerization. [Pg.383]

There are many reaction mechanisms for vinyl addition polymerizations. In approximate order of importance they are free radical polymerization, coordination metal catalysis (Ziegler-Natta), anionic polymerization, cationic polymerization, and group transfer polymerization. Regardless of specific mechanism, these polymerizations tend to be fast, essentially irreversible, highly exothermic and approximately first order with respect to monomer concentration. [Pg.126]


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See also in sourсe #XX -- [ Pg.203 ]




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Allenes coordination polymerization

Anionic coordinated polymerizations

Anionic coordinated polymerizations Ziegler catalysis

Anionic coordinated polymerizations mechanism

Anionic coordination polymerization,

Anionic polymerization, coordinated lactones

Bulk polymerised metal-coordinating polymeric receptors

Cationic coordinated polymerizations

Cationic coordinated polymerizations homogeneous reactions

Cationic coordinated polymerizations mechanisms

Cationic coordinated polymerizations steric effects

Cationic coordination polymerization

Cationic coordination polymerization activated monomer

Cationic coordination polymerization chain transfer

Cationic coordination polymerization copolymerization

Cationic coordination polymerization cyclic ester

Cationic coordination polymerization cyclic ether

Cationic coordination polymerization initiation

Cationic coordination polymerization kinetics

Cationic coordination polymerization lactam

Cationic coordination polymerization lactone

Cationic coordination polymerization propagation

Cationic coordination polymerization rate constants

Cationic coordination polymerization termination

Chain transfer polymerization, coordinative

Conversion Coordination polymerization

Coordinate anionic polymerization

Coordinate anionic polymerization Copolymerization

Coordinate anionic polymerization definition

Coordinate polymerization

Coordinated ligands, chirality polymerization

Coordinated ligands, chirality polymerization mechanisms

Coordination Polymerization of Olefins

Coordination Polymerization of Thermoplastics

Coordination addition polymerization

Coordination anionic chain-growth polymerization

Coordination catalysis in stereospecific polymerization

Coordination catalysts stereospecific chain polymerization

Coordination centres of Ziegler-Natta polymerizations

Coordination compounds polymerization

Coordination initiator polymerization

Coordination polymerization

Coordination polymerization

Coordination polymerization Brookhart

Coordination polymerization Cossee-Arlman

Coordination polymerization Gibson

Coordination polymerization Grubbs

Coordination polymerization HDPE)

Coordination polymerization LLDPE)

Coordination polymerization Phillips catalysts

Coordination polymerization Schrock

Coordination polymerization Ziegler-Natta catalysts

Coordination polymerization basic mechanism

Coordination polymerization catalysts

Coordination polymerization chemical equations

Coordination polymerization conjugated dienes

Coordination polymerization constrained geometry

Coordination polymerization copolymers,

Coordination polymerization cycloolefins

Coordination polymerization definition

Coordination polymerization early transition metal-based

Coordination polymerization elastomers

Coordination polymerization epoxides

Coordination polymerization ethylene-propylene copolymers

Coordination polymerization ethylene-propylene diene

Coordination polymerization for

Coordination polymerization high density polyethylene

Coordination polymerization isotactic polypropylene

Coordination polymerization late transition metal catalysts

Coordination polymerization metallocene

Coordination polymerization models

Coordination polymerization monomer types

Coordination polymerization of oxiranes

Coordination polymerization polymer microstructural

Coordination polymerization process

Coordination polymerization propylene

Coordination polymerization reactions

Coordination polymerization single-site catalysts

Coordination polymerization styrene

Coordination polymerization styrene-ethylene copolymers

Coordination polymerization syndiotactic polypropylene

Coordination polymerization syndiotactic polystyrene

Coordination polymerization terms Links

Coordination polymerization thermoplastics

Coordination polymerization trans-1,4-polybutadiene

Coordination polymerization trans-1,4-polyisoprene

Coordination polymerization, clay

Coordination polymerization, of alkenes

Coordination polymerization, synthesis

Coordination polymerization, templating

Coordination-Insertion Polymerization of Lactide

Coordination-catalyzed polymerization

Coordination/Insertion polymerization

Coordinative Polymerization of Styrenes

Coordinative Ring-Opening Polymerization of Lactones

Coordinative chain transfer polymerization CCTP)

Coordinative chain transfer polymerization ethylene

Coordinative chain transfer polymerization styrene

Coordinative polymerization, discovery

Dienes coordination polymerization

Equilibrium coordination polymerization

High density polyethylene, HDPE coordination polymerization

Imine formation coordination polymerization

In-situ Polymerization of Olefins with Coordination Catalysts Supported on Clays

Ionic and Coordination Polymerizations

Ionic polymerization coordination

Isomerization Polymerizations with Coordination Catalysts

Isomerization polymerization coordination

Lactones coordination polymerization

Mechanism coordination polymerization

Methyl methacrylate anionic coordinated polymerization

Methylenecycloalkanes coordination polymerization

Molecular weight coordination polymerization

OTHER LIVING COORDINATION POLYMERIZATIONS

Olefin Polymerization with Coordination Catalysts

Olefins coordination polymerization

Olefins coordination polymerization branching

Olefins coordination polymerization chain termination

Oligomeric and Polymeric Copper Coordination Compounds Assembled by Thioether Ligands

Other transfers of coordination polymerizations

Polyethylene coordination polymerization

Polymeric Coordination Complexes with d-Block Salts

Polymeric Coordination Complexes with d-Block Salts that Exhibit an Increase in Tg

Polymeric anions, four-coordinated metal

Polymerization Mechanism with Coordination Catalysts

Polymerization by Coordination Mechanism

Polymerization isomerism coordination compounds

Polymerization of Coordinated Monomer

Polymerization of Lactones by Coordination Mechanism

Polymerization of Lactones by a Coordination Mechanism

Polymerization with coordination complexes

Polymerization, activation coordination

Polymerizations with Coordination Catalysts

Polypropylene coordination polymerization

Porous coordination polymers polymerizations

Post Ziegler and Natta Coordination Polymerization of Olefins

SPECIFIC FEATURES OF PHYSICO-CHEMICAL BEHAVIOR COORDINATION POLYMERISM

Silane coordination polymerization

Synthetic polymers from coordination polymerization

Termination of coordination polymerizations

Terminations in Coordination Polymerizations

Transfer in coordination polymerizations

Transition Metal Coordination in Polymeric Complexes

Transition-metal coordination mechanisms polymeric complexes

Zhiquan Shen and Jun Ouyang, Rare earth coordination catalysis in stereospecific polymerization

Ziegler polymerizations anionic coordinated

Ziegler-Natta coordination polymerization

Ziegler-Natta polymerization anionic coordination

Ziegler-Natta polymerization cationic coordination

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