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eBook Ring Forming Polymerizations: Heterocyclic Rings Pt.B (Organic Chemical Monograph) ePub

eBook Ring Forming Polymerizations: Heterocyclic Rings Pt.B (Organic Chemical Monograph) ePub

  • ISBN: 0121917525
  • Subcategory: No category
  • Language: English
  • Publisher: Academic Press Inc.,U.S.
  • ePub book: 1497 kb
  • Fb2 book: 1537 kb
  • Other: rtf lit lrf azw
  • Rating: 4.1
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Description

Emphasis is placed on polymerizations leading to linear, high molecular weight products. This book is comprised of three chapters and begins with a discussion on polymerizations that result in the formation of a multiple bond containing at least one heteroatom.

Ring-forming Polymerizations, Part A: Carbocyclic and Metallorganic Rings covers polymerization reactions that form carbocyclic rings and those that lead to metallorganic ring-containing structures. This book is organized into 11 chapters. The first four chapters describe ring-forming polymerizations that lead to the formation of homocyclic carbon-containing rings. These chapters specifically examine Diels-Alder polymerizations and certain diisopropenyl monomers polymerization yielding high molecular weight polyindanes.

Start by marking Ring Forming Polymerizations (Organic Chemical . Ring-Forming Polymerizations Part B, 2 Heterocyclic Rings. 0121917029 (ISBN13: 9780121917029).

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Ring-opening and ring-forming polymerizations: a polymer synthesis and . In this experiment, we examine two major types of polymerization processes involving heterocyclic monomers or repeat units.

Ring-opening and ring-forming polymerizations: a polymer synthesis and characterizaion experiment. Introduction: Two experiments are actually combined into one through the concept of rings or cyclic structures, either in the monomer or the polymer formed. Polymer synthesis involves ring-opening polymerization to yield a polyamide from an oxazoline, and cyclopolymerization of diallylamine derivative to yield a polymer containing pyrrolidine units. Ring-opening polymerization mechanisms.

Ring-Forming Polymerizations Pt A,, Robert Cotter. This book offers a tool in the design and manufacture of commercially important polymers, plastics, and fibers. All main classes of monomers including heterocyclics, cyclic olefins and alkynes, and cycloalkanes, are discussed separately as well as their specificities regarding the ring-opening polymerization techniques, the mechanisms, the degree of control, the properties of the related polymers and their applications. The two last chapters are devoted to the implementation of green chemistry in ring-opening polymerization processes.

A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic chemistry is the branch of organic chemistry dealing with the synthesis, properties, and applications of these heterocycles. Examples of heterocyclic compounds include all of the nucleic acids, the majority of drugs, most biomass (cellulose and related materials), and many natural and synthetic dyes.

These spirocycles are initiators for the zwitterionic ring-expansion polymerization of β-lactones to generate cyclic . We report spirocyclic imidazolidines derived from N-heterocyclic carbenes and β-lactones.

These spirocycles are initiators for the zwitterionic ring-expansion polymerization of β-lactones to generate cyclic polyesters of well-defined molecular weight. The zwitterionic strategy based on the equilibrium between the zwitterionic intermediates and spiro macrocyclics enables the controlled synthesis of cyclic poly(β-lactone)s. These spirocycles are initiators for the zwitterionic ring-expansion polymerization of β-lactones to generate cyclic polyesters of well-defined molecular weight.

More recently, living ring-opening metathesis polymerization (ROMP), a variation of the olefin . Facile synthesis of biopolymers that facilitate versatile post-polymerization modification is of great interest for biotechnological and biomedical applications.

The technique has found tremendous utility in preparing materials with interesting biological, electronic, and mechanical properties.

Ring-opening metathesis polymerization (ROMP) has now been applied to. .In the more recent monograph on ROP, from a volume already cited,115 there are several papers on ROMP, particularly on living ROMP.

Ring-opening metathesis polymerization (ROMP) has now been applied to the successful polymerization of 1,1′- ferrocene 12, to produce the conjugated polymer 13 containing iron in the chain backbone. The metallacyclobutane intermediate formed in every elementary reaction in ROMP. In the more recent monograph on ROP, from a volume already cited,115 there are several papers on ROMP, particularly on living ROMP by Grubbs and his coworkers. 116 Finally, catalytic system based on ruthenium emerged and replacement of triphenylphosphine ligand by ne (–Cy) gave more reactive system (Scheme 28).

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