Showing papers in "Progress in Polymer Science in 2006"

TL;DR: Chitin is the second most important natural polymer in the world as mentioned in this paper, and the main sources of chitin are two marine crustaceans, shrimp and crabs, which are used for food, cosmetics, biomedical and pharmaceutical applications.

TL;DR: A review of polymer blends and composites from renewable resources can be found in this article, where the progress of blends from three kinds of polymers from renewable sources (i.e., natural polymers such as starch, protein and cellulose), synthetic polymers, such as polylactic acid and polyhydroxybutyrate, are described with an emphasis on potential applications.

TL;DR: The role of the Michael addition reaction in polymer synthesis with attention to applications in emerging technologies including biomedical, pharmaceutical, optoelectronic, composites, adhesives, and coatings is outlined.

TL;DR: In this paper, a review of the structure, property and modification of triglyceride oils and synthesis of polymers there from is presented, including the scope, limitations, and possibility of utilizing such methods for various applications.

TL;DR: In this article, a review article focused on the polymerization mechanisms and kinetics involved in such a heterogeneous polymerization system over the preceding 10-year period and discussed the origin of non-uniform latex particles from both the thermodynamic and kinetic points of view.

TL;DR: The current synthetic advances in polymer-conjugation with different bioactive components of clinical importance are discussed and the strategies for reduction of steric hindrance and increase in reactivity of the polymers, drugs and bioactive agents are described.

TL;DR: A review of living and controlled/living methodologies for the synthesis of polymers with different macromolecular architectures is presented in this paper, along with a few representative examples.

TL;DR: In this paper, experimental and theoretical studies of solubility and viscosity of several polymer melts are discussed in detail, and detailed attention is also given to recently reported applications along with aspects related to polymer processing.

TL;DR: In this paper, a review of the new experimental results, points to some straightforward conclusions and also presents a novel thermodynamic scheme developed on the basis of the observations, based on the observations.

TL;DR: In this article, a review of physicochemical characterization of polymeric micelles and their applications as functional materials is presented, focusing on their applications in drug delivery systems, capillary electrophoresis and surface modification.

TL;DR: In recent years, matrix assisted laser desorption/ionization time-of-flight (MALDI-TOF) has become a routine analytical tool for the structural analysis of polymers, complementing NMR and other traditional techniques as mentioned in this paper.

TL;DR: In this article, the synthesis and characterization of new polymers from different natural oils such as soybean, corn, tung, linseed, castor, and fish oil are discussed.

TL;DR: This review is focused on new non-organometallic N-heterocyclic carbenes recently reported as catalysts for the controlled ROP of cyclic esters, providing organocatalytic alternatives to traditional organometallic reagents.

TL;DR: In this paper, a review of transformation reactions involving living and controlled/living polymerization methods is presented, including step-growth, conventional and controlled free radical, cationic, anionic, group transfer, activated monomer Ziegler-Natta and metathesis reactions.

TL;DR: The emerging field of amphiphilic conetworks (APCNs) is critically reviewed in this paper, where a definition of APCNs is proposed and discussed in depth, and a large amount of information scattered throughout the scientific and patent literature is collected and analyzed, and the strategies for the synthesis of APCANs are identified, systematized, and evaluated.

TL;DR: Ring-opening polymerization has some advantages over the conventional polymerization method, such as it does not produce a small molecule byproduct, whose removal requires high temperature and high vacuum.

TL;DR: In this article, an aliphatic-aromatic cross-linked natural polymer present in the outer tissues of numerous vegetable species, is discussed in terms of its occurrence, particularly where it dominates the bark composition of some trees, its macromolecular structure and positioning within the cell wall, its controlled chemical splicing (depolymerization through ester cleavage), and the qualitative and quantitative composition of the ensuing monomeric fragments, and the exploitation of this mixture of monomers in macrochemical science, both as a possible functional additive and as a source of novel materials.

TL;DR: A review of 20 years of block copolymer synthesis with dual and heterofunctional initiators can be found in this paper, where the authors highlight the recent exponential growth in the development of functional polymeric materials for a broad spectrum of emerging technologies.

TL;DR: A comprehensive overview of reclamation of cured rubber with special emphasis on latex reclamation is depicted in this paper, where the role of different components in the reclamation recipe is explained and the reaction mechanism and chemistry during reclamation are discussed in detail.

TL;DR: In this paper, a review on the catalysts that promote the syndiospecific polymerization of propylene, the crystal structure, the polymorphic behavior and the physical properties of syndiotactic polypropylene, carried out since the early synthesis, are described.

TL;DR: In this paper, the authors reviewed the widely applied approaches to the description of the conversion of melt into spherulites and critically assessed the possible reasons of discrepancies between the theoretical predictions and the experimental data.

TL;DR: The Natural Living Carbocationic Polymerization (NLCP) as mentioned in this paper is a natural living carbocationic polymerization (LPCP) method for polyisoprenoid biosynthesis.

TL;DR: In this article, the free radical polymerization to alternating copolymers of systems of two, three or four nonhomopolymerizable electron-rich (donor) and electron-poor (acceptor) monomers, which always contain 50% donor and acceptor monomer units each, was investigated.

TL;DR: In this paper, the synthesis of mid-chain radicals formed during polymerization of acrylic esters are structurally similar to the radicals generated by radical addition to the 2-carbalkoxy-2-propenyl end-group.

TL;DR: In this paper, two classes of vinyl monomers bearing chromophores and their polymers based on the electron-accepting (A) or electron-donating (D) properties of vinyl double bonds are described.

TL;DR: In this paper, a review of supramolecular self-assembling systems based on rapidly responsive hydrogels from polymeric hosts and low molecular weight guests is presented, showing that dual cooperative interactions, i.e. specific host-guest and intermolecular ionic interactions, play a dominant role in the fast aggregation process.

TL;DR: In this paper, the effects of solvent and carbanion structure on ion pair solvation and dissociation, and their role in initiation equilibria are discussed, as well as the dynamics of ion pair dissociation and triple ion formation based on the second Wien effect.

TL;DR: In this article, the second-order rate constants of propagation k p + or k p ±, respectively, on unpaired ions and ion-pairs are examined in Section 2 and 4 and compared in Section 3 with the rate constants for model reactions.

TL;DR: A great variety of condensation monomers have been prepared by the reaction of bis(α-diketones) with two-fold molar amounts of diarylacetones as discussed by the authors.