Cyclopolymerization

Abstract

Progress in Polymer Science 4 (1975) 71-208. doi:10.1016/0079-6700(75)90004-02016-03-04T18:46:49

Side-Loop Polymers Based on the Hydrosilylation of Polybutadiene

“…Polymer architectures are usually categorized as linear, branched, and cross-linked. − Recently, the exploration of novel polymer architectures has become one of the most active areas of polymer chemistry, and reviews have appeared covering dendrimers, − polyrotaxanes, polycatenanes, and cyclic polymers. , The concept of side-loop polymers has been virtually unexplored. Thus, polymerization of divinyl monomers has yielded polymers with loops consisting of the original spacers between vinyl groups …”

Cyclopolymerization and cyclocopolymerization

“…Methyl allyl maléate and methyl allyl fumarate were perhaps the earliest examples of unsymmetrical dienes to be studied,19 but numerous other unsymmetrical dienes have been studied and discussed in detail. 18 Polycyclic systems have been synthesized via cyclopolymerization in a number of ways. For example, it has been shown20 that ci"s,cis-l,5-cyclooctadiene can be converted to the bicyclic structure via use of a Ziegler-Natta catalyst (eq 5).…”

Pseudo-Cryptand-Containing Copolymers: Cyclopolymerization and Biocompatible Water-Soluble Al3+ Fluorescent Sensor in Vitro

“…Cyclopolymerization − of difunctional monomers has been considered to be an effective and convenient sequence-controlled method − for the construction of cyclic polymers. During the course of cyclopolymerization, intramolecular cyclization and intermolecular chain propagation proceed alternatively, affording well-defined soluble linear polymers with in-chain cyclic (pseudo) crown ether moieties as repeating units along the backbones. − ,, To date, most examples of cyclopolymerizations are realized in the presence of metal catalysts. − With the development of “controlled/living” radical polymerization, cyclopolymerizations of difunctional monomers bridged by bulky or orienting groups have also emerged. − Our group has developed an elegant method to carry out a MAn-assisted RAFT alternative cyclocopolymerization of flexible difunctional styrenic monomers, resulting in crown ether-containing copolymers . Zou and co-workers synthesized a series of difunctional monomers with functionalized-styrene and maleimide moieties covalently linked by varied length of OEG linkers, affording well-defined polymers with crown ether encircled in their main chain .…”

“…During the course of cyclopolymerization, intramolecular cyclization and intermolecular chain propagation proceed alternatively, affording well-defined soluble linear polymers with in-chain cyclic (pseudo) crown ether moieties as repeating units along the backbones. [1][2][3]8,9 To date, most examples of cyclopolymerizations are realized in the presence of metal catalysts. 10−13 With the development of "controlled/living" radical polymerization, cyclopolymerizations of difunctional monomers bridged by bulky or orienting groups have also emerged.…”