Polymer Solution
Polymer Solution - Related Videos
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,...
09:49
Solutions and Concentrations
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2023
Source: Laboratory of Dr. Michael Evans — Georgia Institute of Technology A solution is a homogeneous mixture containing some components in small amounts, called solutes, and one component in a large amount, called the solvent. Solid-liquid solutions contain one or more solid solutes dissolved in a liquid solvent. Solutions are ubiquitous in chemistry: they are used to store and handle small amounts of material, carry out chemical reactions, and develop materials with controllable properties.
08:44
Tension Tests of Polymers
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2023
Source: Roberto Leon, Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA Polymeric materials are widely used in civil structures, with uses ranging from very soft sealants to more rigid pipes in water and wastewater systems. The most basic definition of a polymer is a molecular structure with repeating subunits. The term polymer comes from Greek, where "poly" means many, and "-mer" means basic unit. Monomers, or single mers, are the specific repeating units. With...
13:57
Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
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Cited by 4 •
2014
The methodology to perform friction force microscopy experiments for contacting brushes is presented: Two polymer brushes that are grafted from (a) substrates and (b) colloidal probes are slid to show that, by using two contacting immiscible brush systems, friction in sliding contacts is reduced compared to miscible brush systems.
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.
FAQs
Solvent–polymer compatibility determines whether chains can disperse and how much they expand in solution. Molecular weight, concentration, and temperature then modify the chain environment and flow response. Because these variables act together, changing one can alter viscosity and processing behavior even when the polymer and solvent remain the same, making them central design parameters for bioengineering materials.
As concentration rises, separated chains begin to overlap and may become entangled. This transition increases resistance to flow, so viscosity changes with concentration rather than remaining constant. The resulting flow behavior helps determine whether a formulation can be processed into a fiber, film, hydrogel, or injectable material, linking molecular-scale organization to practical fabrication control.
Temperature is a useful control variable because it influences polymer-solution behavior alongside solvent interactions, concentration, and molecular weight. Monitoring how viscosity and flow respond to temperature helps researchers identify formulations that remain practically processable under selected conditions. This assessment is especially relevant when establishing processing conditions for engineered biomedical materials.
Chain organization provides a bridge between processing and final material design. Solvent–polymer interactions and the degree of overlap or entanglement influence solution flow, while controlled processing can be used to target structure and mechanical performance. In bioengineering, researchers also consider how those choices affect degradation and biological compatibility, not viscosity alone.
A useful design workflow starts by selecting a compatible solvent, then specifying polymer concentration, molecular weight, and temperature. Researchers can examine how those choices change viscosity and flow before selecting a processing route. This organized control supports reproducible fabrication of fibers, films, hydrogels, or injectable formulations rather than treating the solution as a fixed material.
Polymer solutions support fibers, films, hydrogels, and injectable formulations, with the selected format matching the intended bioengineering use. The overview specifically connects these material forms to tissue engineering, drug delivery, and other biomedical applications. Their value comes from the ability to tune solution behavior before fabrication, helping researchers control resulting structure and performance.
Researchers can interpret viscosity and flow as indicators of how polymer chains are organizing in solution. Increasing overlap and entanglement signals a different processing condition than more separated chains. Relating these measurements to the fabricated material helps guide decisions about structure, mechanical performance, degradation, and biological compatibility in tissue-engineering and drug-delivery designs.