Infrared spectroscopy and polymer structure

Infrared Spectroscopy and Polymer Structure

INTRODUCTION The power of infrared spectroscopy as a tool in studying the structure of small molecules is well known. This insight into structure results largely from our ability to analyse the spectrum theoretically by means of a normal coordinate analysis. This technique consists of calculating the normal vibration frequencies of a molecule from information on its structure and internal force...

Polymer Identification using Mid Infrared Spectroscopy

Synthetic polymers are very widely used today, with diverse applications in various industries such as food, automotive, and packaging. The quality of plastic products depends on the quality of the polymers or polymer blends used during manufacturing, so identity verification and quality testing of those materials during every stage of manufacturing is necessary to ensure that only high-quality...

Studying a New Infrared Reflective Polymer Coating

Although, that the solar energy is important for life continuity, there is need to protect large buildings from these radiations in summer and if the buildings are permitted to take these radiations, the cost of cooling will be too much. One of the most effective methods used to solve this problem is to coat buildings with specific pigments that reflect the solar infrared radiation. This wo...

Analysis of Polymer-Dispersed Liquid Crystals by Infrared Spectroscopy

FT-IR microspectroscopy is used to compare the polymer and liquid crystal droplet regions within polymer-dispersed liquid crystal (PDLC) films. Thermoplastic polymer matrix PDLCs contain a higher amount of liquid crystal within the polymer regions than do thermoset polymer matrix films. IR functional group images of a droplet show characteristic textures corresponding to the visual images of th...

Process Monitoring of Polymer Systems by using Near-Infrared Spectroscopy