Synthetic Polymers
Synthetic Polymers - Related Videos
06:16
MALDI-ToF MS Method for the Characterization of Synthetic Polymers with Varying Dispersity and End Groups
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2025
This protocol provides detailed instructions and examples for sample preparation, data acquisition, and data analysis to characterize synthetic polymers with varying dispersity and end-groups using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.
01:28
Classification and Mechanical Properties of Synthetic Polymers
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2026
Synthetic polymers are classified as elastomers, fibers, or plastics based on their crystallinity. Crystallinity, the degree of long-range order in the solid state, influences the mechanical properties (stretching or contracting) of elastomers. Elastomers are flexible polymers that can expand or contract easily upon the application of an external force. They have numerous crosslinks that pull them back into their original shape when stress is removed. Silicones, for instance, are highly elastic...
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,...
07:28
Synthetic Biology
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2023
This video presents synthetic biology and its role in bioengineering. Synthetic biology refers to the methods used to genetically modify organisms in order to make them capable of producing large quantities of a product. This product could be a protein that the cell already makes or a new protein that has been encoded in a newly-inserted DNA sequence. Here, we discuss how an organism's genetic material is modified using transformation or transfection. Then, the process is shown in the...
03:49
Chromogenic Polymer Hydrogel-Based Enzyme Screening Assay: A High Throughput Method to Screen the Carbohydrate-Active Enzymes Using Synthetic Substrates
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2025
In this video, we demonstrate a high throughput assay for carbohydrate-active enzyme screening using insoluble chromogenic polymer hydrogel substrates. The enzyme degrades these substrates into a soluble colored product that can be quantified by measuring the color intensity of the product.
FAQs
The main mechanistic distinction is how monomers become connected. Chain-growth polymerization extends a growing molecular chain, while step-growth polymerization builds larger molecules through successive reactions among molecular units. Both routes can produce long molecules, but the selected route and reaction conditions influence molecular weight, branching, cross-linking, and the final material properties.
Branching and cross-linking alter how polymer molecules are arranged and connected. These structural changes can modify strength, flexibility, thermal stability, solubility, and chemical resistance. Consequently, chemists adjust molecular architecture rather than relying only on monomer identity, allowing the resulting material to meet different performance requirements in coatings, fibers, adhesives, or composites.
Monomer selection provides the starting point for tailoring a polymer's performance. Different monomers support different combinations of strength, flexibility, thermal stability, solubility, and chemical resistance. Chemists therefore choose monomers together with an appropriate polymerization route and reaction conditions, linking molecular design decisions to the properties required for a particular material application.
A typical design sequence starts by identifying the required material properties, such as flexibility, strength, thermal stability, solubility, or chemical resistance. Chemists then select suitable monomers, choose chain-growth or step-growth polymerization, and control reaction conditions to influence molecular weight, branching, and cross-linking. This coordinated approach connects synthesis choices with the intended material performance.
Synthetic polymers serve in packaging, coatings, adhesives, fibers, biomedical devices, and advanced composites because their molecular structures can be adjusted for different performance needs. Strength and flexibility may be emphasized in one use, while chemical resistance or thermal stability may matter more in another. Their broad utility follows from this ability to tailor properties through chemical design.
Current research focuses on more sustainable feedstocks, recyclable designs, and polymers that maintain or improve performance. These directions address the material lifecycle as well as the properties required during use. In chemistry, the challenge is to connect molecular and structural control with reduced environmental impact, creating materials that are both functional and more compatible with recycling goals.