Polymer synthesis

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Polyethylene glycol (PEG) reagents offer numerous favorable characteristics, including high water solubility, high mobility in solution, lack of toxicity and immunogenicity, and ready clearance from the body.

What Are Biomaterials?

Biocompatible / Biodegradable Polymer Tutorial

Functional RAFT Polymers for Biomedical Applications

Reversible addition–fragmentation chain transfer (RAFT) polymerization is rapidly moving to the forefront in construction of drug and gene delivery vehicles.

The Progress in Development of Dental Restorative Materials

With dentists placing nearly 100 million dental fillings into patients′ teeth annually in the U.S. alone, polymeric composite restoratives account for a very large share of the biomaterials market.

Carbon Nanofiber Applications & Properties

Pyrograf®-III vapor-grown carbon nanofibers are within the class of materials termed multi-walled carbon nanotubes (MWCNTs), and are produced by the floating catalyst method.

Universal Platform for Surface Modification Employing Grafted Polymer Layers

High-Purity Monomers & Polymers for Ophthalmic Applications

We offer a continuously expanding selection of high-purity monomers and polymers for ophthalmic applications, along with a full range of initiators, crosslinkers, dyes, and solvents.

Mesoporous Materials Synthesis

Mesoporous materials are formed by a self-assembly process from combined solutions of sol-gel precursors (e.g., metal alkoxides) and structure-directing amphiphiles, usually block-copolymers or surfactants.

Polyethylene Glycol Building Blocks for PEGylation

Sigma-Aldrich.com presents an article regarding Polyethylene Glycol Building Blocks for PEGylation.

Poly(N-isopropylacrylamide)-based Smart Surfaces for Cell Sheet Tissue Engineering

Tissue engineering has become a key therapeutic tool in the treatment of damaged or diseased organs and tissues, such as blood vessels and urinary bladders.

Segmented Copolymers of p-dioxanone, Glycolide, and Lactide: Advantages and Applications in Biomedical

Main features of p-dioxanone, glycolide and lactide based copolymers

Applying ARGET ATRP to the Growth of Polymer Brush Thin Films by Surface-initiated Polymerization

Chemistry at Surfaces with Self-Assembled Monolayers and SAMDI-ToF Mass Spectrometry

Fluorinated Hyperbranched Polymers

Fluorocarbon polymers, like small-molecule fluorocarbons, exhibit increased thermal stability, hydrophobicity, lipophobicity, improved chemical resistance, and decreased intermolecular attractive forces in comparison to their hydrocarbon analogs.

RAFT Agents for Making Well-Defined Functionalized Polymers

The supply of low cost, high purity and effective Reversible addition−fragmentation chain-transfer (RAFT) Agents is the essential element in the industrial implementation of RAFT polymerization technology.

NTz Building Blocks for Organic Semiconductors

The field of organic electronics has emerged as the next-generation technology potentially enabling ultra-thin, large-area, and/or flexible devices, consisting of organic field-effect transistors (OFETs), organic light-emitting diodes (OLEDs), and organic photovoltaics (OPVs).

Evaluation of RAFT Agents

A series of polymerization were carried out using RAFT agents and monomers yielding well-defined polymers with narrow molecular weight distributions. The process allows radical-initiated growing polymer chains to degeneratively transfer reactivity from one to another through the use of key

Block copolymer synthesis using a commercially available nitroxide-mediated radical polymerization (NMP) initiator

RAFT: Choosing the Right Agent to Achieve Controlled Polymerization

Find reversible addition–fragmentation chain transfer(RAFT) polymerization process, classes of RAFT agents & applications.

Electrospinning: An Enabling Technique for Nanostructured Materials

In this article, we discuss issues critical to successful application of the electrospinning technique, including control of individual nanofibers to form secondary structures and assembly of nanofibers into 3D architectures.

Molecular Layer Deposition of Organic and Hybrid Organic-Inorganic Polymers

Atomic layer deposition (ALD) techniques have emerged in the last ten years to meet various needs including semiconductor device miniaturization, conformal deposition on porous structures and coating of nanoparticles. ALD is based on two sequential self-limiting surface reactions.

Continuous Flow Manufacturing for Monomer Synthesis

The manufacture of monomers for use in ophthalmic applications is driven by the need for higher purity, improved reliability of manufacturing supply, but ultimately by the need for the increased comfort, convenience, and safety of contact lens wearers. Daily wear

Innovative Materials for Glass Ionomer Cements (GICs): Dental Applications

Innovation in dental restorative materials is driven by the need for biocompatible and natural-appearing restoration alternatives. Conventional dental materials like amalgam and composite resins have inherent disadvantages.

Nano Minerals: Nanoclays

Nanoclays are nanoparticles of layered mineral silicates. Montmorillonite, bentonite, and halloysite nanoclays and organoclays are used in polymer-clay nanocomposites, as rheology modifiers, and drug delivery carriers.

Polymer-Clay Nanocomposites: Design and Application of Multi-Functional Materials

One of the desirable end-goals of materials science research is the development of multi-functional materials. These materials are defined as compositions that bring more than one property enhancement to a particular application, thus allowing the material to replace more than

ATRP Ligands and Initiators for the Clean Synthesis of Functional Polymers

Atom transfer radical polymerization (ATRP) has emerged as one of the most successful synthetic techniques for the preparation of polymers with predetermined molecular weights, narrow molecular weight distributions, and high degrees of chain end functionalities.

MALDI-TOF Characterization of Functionalized Polymers

MALDI-TOF MS is a tool for confirming end group identity & transformations, verifying successful & complete conjugation. Functionalized polymers enable a quick & efficient route for synthesis of various polymer conjugates for many applications if apt end group is present.

Hexafluoroalcohol-functionalized Methacrylate Monomers for Lithographic/nanopatterning materials

To keep pace with Moore′s Law, there is a continuing need in the semiconductor industry to achieve higher circuit density in microelectronic devices.

Functional Biomaterials Synthesized by Double-Head Polymerization Agents

Over the past two decades, the rapid advance of controlled living polymerization (CLP) techniques.

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