東レリサーチセンター Company Profile

The solubility parameter (SP value) is a material-specific physical property related to the cohesive energy density of a substance, serving not only as an indicator of a material's solubility in a solvent but also relating to issues involving the affinity between two materials (such as adhesion, permeability, and particle dispersion). The Hansen solubility parameter (HSP), proposed by Dr. C.M. Hansen, divides the SP value into three interaction components (dispersion component, polar component, and hydrogen bonding component), and its application in various phenomena and industries is anticipated. In this course, we will describe the principles of SP values and HSP, explain the measurement method of HSP using the Hansen sphere method, and provide examples of applications in swelling and adhesion, incorporating the use of HSP analysis software (HSPiP). Additionally, we will discuss the estimation of HSP using the SMILES notation of molecules and the potential applications to life science materials.

There are gases generated that contain relatively low concentrations of contaminants (low-concentration contaminated gases) produced during semiconductor manufacturing processes and in clean rooms, as well as gases that contain relatively high concentrations of contaminants (high-concentration contaminated gases) arising from industrial materials and the environment. This course will cover gas analysis (sampling) in the field, analytical methods (such as TPD-MS), the basics of equipment, and data interpretation related to these gases. Additionally, we will discuss regulatory aspects, which are an important consideration in gas analysis. 【Target Audience】 - Those struggling with generated gases - Personnel responsible for TPD-MS and GC analysis - Managers of manufacturing processes and work environments - Researchers related to exhaust gases, resin molding, semiconductors, clean rooms, and odors.

Infrared spectroscopy is an analytical method that utilizes the absorption of specific wavelengths by a substance when irradiated with infrared light to obtain information about chemical bonds, such as functional groups. It is widely used as a composition analysis technique for organic compounds and polymers. There are various measurement modes, such as the ATR method, which can be selected according to the sample form and purpose, making it adaptable for evaluating not only organic compounds and polymers but also inorganic substances, gases, liquids, and various forms of samples. In this course, we will explain the principles and measurement modes of infrared spectroscopy and introduce case studies using this method. Raman spectroscopy is a technique that detects scattered light generated when a substance is irradiated with light and analyzes the vibrational modes of molecules and crystals. In addition to obtaining similar chemical bond information as infrared spectroscopy, it is also used to analyze structures that contribute to material properties, such as orientation, crystallinity, and stress. While it has a wide range of applications, understanding the method and materials, as well as making appropriate adjustments during analysis, is necessary for effective use. In this course, we will explain the basic concepts of Raman spectroscopy and key points of analysis. We will also touch on comparisons with infrared spectroscopy and considerations for method selection, while introducing case studies that leverage the strengths of Raman spectroscopy.