Gel Permeability Chromatography (GPC), also known as Size Exclusion Chromatography (SEC), is a chromatographic method that separates molecules based on particle size. This method is used to obtain fast and precise results in the determination of molecular weight and molecular weight distribution of polymers.

Instrument: Malvern – OmniSEC

The instrument consists of two parts, Resolve and Reveal.

Zeta potential is a measure of the push or pull value between grains. Zeta potential measurement provides detailed information about the dissipation mechanisms and is the key to electrostatic dissipation control. A grain of a certain charge attracts counter-charged ions in suspension, as a result, a strong bond surface forms on the surface of the charged particle, and then a surface that extends outward from the surface of the charged particle. Within this extended surface is a boundary called the "slip surface".

Properties such as strength, chemical reactivity, opacity, fluidity and material strength in materials depend on the grain size characteristics of the materials. Mie Theory is used to measure the size of small grains. Mie Theory considers both the refraction and the transmittance of light around the grain size in the medium. In order to use the Mie model, the refractive indices of both the sample and the medium must be known.

Nuclear Magnetic Resonance (NMR) spectrometry is the spectroscopic method based on the principle that a spiny nucleus held in a magnetic field resonates with a radio wave photon at the appropriate frequency. By using NMR, information can be obtained about the structure of the compound, its bonding properties, its molecular formula and weight, its molecular movements, and the structural arrangement of polymers.

High  Power  Solid  State 300  MHz  NMR  Spectrometer
Bruker Superconducting FT-NMR Spectrometer Avance TM 300 MHz WB

Probe: 2.5 mm MAS, 4 mm MAS , 7 mm MAS

The device consists of four parts:

• Micro Indenter – Scratch
• Nano Indenter
• Atomic Force Microscope
• Optical Microscope

Indentation (Nano/Micro)

The Indentation device is used to determine the mechanical properties (Hardness, Elastic Modulus) of different materials (soft, hard, brittle and flexible) and thin films formed from these materials.