Polymer Processing

Crystallization induced structure development in polymer nanocomposites

In polymer nanocomposites, inorganic nanoparticles are
dispersed in a polymer matrix to prepare materials with superior engineering
properties. Of particular interest are a novel class of materials, called
polymer grafted nanoparticles. These are nanoparticles that comprise an
inorganic core covalently tethered to a shell of polymer chains. Dispersion of
polymer grafted nanoparticles in a polymeric matrix is facilitated by favourable
interactions between the grafted shell and the matrix. In particular, when the  read more »

Proposing Faculty
Research Area
  • Colloids
  • Nano-composites
  • Nanoparticles
  • Polymer Physics
  • Polymer Processing
  • Rheology
Venkat Gundabala

CL 429 Polymer Sc. & Engg.

1. Constitution and Architecture of Polymers: Chemical Structure of Polymers (Polymer Nomenclature); Molecular Weight Distributions (PDI, etc.); Chain Architecture (Linear/Branched, Tacticity, Isomerism) 2. Polymer Synthesis: Step Growth Polymerisation: Chain Growth Polymerisation; Emulsion Polymerisatio.; Ionic Polymerisation; Synthesis of Copolymers and Stereo-regular Polymers. 3. Glassy, Crystalline and Molten States of Polymers: Meaning of Crystallinity, Fraction Crystallinity; Meaning of Tg, Tg vs. Mn; Introduction to Free Volume Concepts 4.  read more »

Atomic force microscope system(Easyscan 2 STM version 1.5)

nanosurf_AFM.jpg

The AFM consists of a cantilever with a sharp tip at its end. Multiple white LEDs illuminate the sample for proper positioning and setup. The tip is brought into close proximity of a sample surface. The force between the tip and the sample leads to a deflection of the cantilever according to Hooke's law. Typically, the deflection is measured using a laser spot reflected from the top of the cantilever. The tip is then scanned across the sample surface and the vertical displacement s necessary to maintain a constant force on the tip is recorded.  read more »

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Micro Annular Gear Pump

gear pump.jpg

These micro annular pumps can maintain flow rates from 0.0015 to 1152 ml/min at differential pressures up to 150 Bar with attributes like low shear stress and reverse pumping. All types of liquids having viscosities between 0.3 and 1000,000 mPas can be passed through these pumps. It has an integrated 16-bit microcontroller for speed and position control for continuous and discrete dispensing tasks. Operating temperature ranges from -5 to 60 °C.  read more »

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Inverted Microscope, Nikon Eclipse TE-2000U

Nikon inverted microscope.jpg

This microscope has its light source and condenser on the top, above the stage pointing down, while the objectives and turret are below the stage pointing up. The stage on an inverted microscope is usually fixed, and focus is adjusted by moving the objective lens along a vertical axis to bring it closer to or further from the specimen. The focus mechanism typically has a dual concentric knob for coarse and fine adjustment.  read more »

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Molecular Modelling Software

Materials Studio is a comprehensive materials modeling and simulation application designed for scientists in chemicals and materials R&D as well as pharmaceuticals development. Materials Studio reduces the time needed to solve complex calculations with:
• Industry-leading graphical user environments
• State-of-the-art simulation technology from quantum to atomistic to mesoscale
• Powerful statistical tools for structure-property relationships  read more »

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Syringe pump with static mixing unit

Syringe Pump _mixing unit.JPG

The capacity of this pump is 500ml and it can be operated in a temperature range of 5 - 40° C. Temperature control jacket, High-temperature pressure transducers and High-precision pressure transducers are present. Hence, there is a flow and pressure control. The flow range can be between 0. 001 – 204 ml/min. The 500D is ideal for a wide range of chemical feed applications and metering of liquefied gases. RS-232 serial interface enables computer control or monitoring of operating parameters.

Web links:
http://www.isco.com/products/products3.asp?PL=1051020  read more »

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