Crosslinked Polymer Resin
Crosslinked Polymer Resin - Related Videos
02:38
Anion Exchange Resin–Based Detection of Viruses from Bioaerosols
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2026
Source: Schaeffer, J. W., Chandler, et al. Detection of Viruses from Bioaerosols Using Anion Exchange Resin. J. Vis. Exp. (2018).This video demonstrates the detection of viruses from bioaerosols using an anion exchange resin. A liquid impinger containing the resin is used to capture viruses from the air. The resin is collected and treated with a virus lysis buffer containing carrier RNA. The lysate is transferred to a microcentrifuge tube for viral RNA isolation, followed by qRT-PCR to amplify...
11:15
Nanosponge Tunability in Size and Crosslinking Density
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Cited by 1 •
2017
This article describes a process for tuning the size and crosslinking density of covalently crosslinked nanoparticles from linear polyesters containing pendant functionality. By tailoring synthesis parameters (polymer molecular weight, pendant functionality incorporation, and crosslinker equivalents), a desired nanoparticle size and crosslinking density can be achieved for drug delivery applications.
02:34
Polymers
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2020
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
08:12
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
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2022
Here, we describe protocols for the preparation of trans-cyclobutane fused cyclooctenes (tCBCO), their polymerization to prepare depolymerizable olefinic polymers, and the depolymerization of these polymers under mild conditions. Additionally, protocols for the preparation of depolymerizable networks and compression molding of rigid linear plastics based on this system are described.
07:07
Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology
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Cited by 2 •
2015
The synthesis of asymmetric species of ferrocene is challenging using solution techniques. This report focuses on the methods carried out to produce a ferrocene-biotin bioconjugate using facile and clean reactions accomplished via solid-phase synthesis. Incorporation of a thiolate moiety is shown to impart the ability for immobilization on gold surfaces.
FAQs
Network density controls how freely polymer segments can move. When more bridges connect neighboring chains, the three-dimensional structure becomes less mobile and better maintains its dimensions under stress. This change explains why adjusting crosslink density can increase resistance to deformation, solvents, and chemical damage, although the balance depends on the formulation and curing conditions.
During curing, reactive functional groups on polymer chains form chemical bridges, either directly or with help from an added crosslinking agent. Heat, light, or a catalyst can initiate or promote this transformation. The key chemical event is conversion of separate reactive sites into a connected network, so curing conditions determine whether the resin develops the intended structural stability.
An uncrosslinked polymer does not have the same extensive network of chemical bridges between its chains. In the crosslinked material, those connections restrict chain movement and help preserve shape during exposure to solvents or deformation. Consequently, the resin generally provides greater dimensional stability and resistance to melting, chemical damage, and deformation than its uncrosslinked counterpart.
Reactive functional groups provide the sites where polymer chains can form covalent or other chemical bridges. Their reaction connects previously separate portions of the material and builds the three-dimensional network during curing. This molecular connectivity is important because it links chemical composition and processing conditions to bulk properties such as dimensional stability, solvent resistance, and resistance to deformation.
Preparation begins with polymer chains containing suitable reactive functional groups. A crosslinking agent may be added when required, and the formulation is then exposed to a curing condition such as heat, light, or a catalyst. As the reactive sites form bridges, the material develops its network structure. The resulting crosslink density influences its final performance.
Crosslinked resins are used in adhesives, protective coatings, composites, ion-exchange materials, electrical insulation, and durable molded components. These applications benefit from the network's resistance to solvents, deformation, melting, or chemical damage. The same underlying structure can therefore provide bonding, surface protection, reinforcement, insulation, or long-term dimensional stability, depending on how the resin is formulated.
In chemistry, the material illustrates how reactions between functional groups can change macroscopic behavior. Curing converts molecular-scale reactive sites into bridges, while network density determines how strongly chain movement is restricted. Researchers can therefore relate changes in chemical connectivity to practical outcomes, including dimensional stability and resistance to solvents, deformation, and chemical damage in finished materials.