Experiment 5: Swelling and solute transport properties of hydrogels.
(a) To study the response of polyacrylamide hydrogel networks (synthesized in
experiment 4) to temperature and ionic strength/ composition of the aqueous phase by
Experiment 6: Interfacial polymerization of Nylon 6,10
Aim: (a) To synthesize unsupported membranes of Nylon 6,10 by unstirred interfacial
step polymerization of hexamethylene diamine (HMDA) and sebacoyl chloride. To observe
the quality of the nylon film
Experiment 4: Synthesis of hydrogels of acrylamide and bisacrylamide
Aim: (a) To synthesize polyacrylamide electrophoresis hydrogels by copolymerization of
acrylamide and bisacrylamide in water by free radical polymerization using a redox pair o
Experiment 1: Polymerization of acrylamide in water
Aim: (a) To polymerize acrylamide (monomer) in water to polyacrylamide (polymer) by
free radical polymerization using a "redox" pair of initiators.
(b) To follow the kinetics of polymerization by monito
Experiment 3: Conversion of polyacrylamide to sodium polyacrylate
salt and subsequent conversions to poly(acrylic acid).
Aim: (a) To convert PAM produced in Experiment #1 to sodium polyacrylate (NaPAA)
and measure its intrinsic viscosity using an Ubbelohd
Experiment 2: Characterization of polyacrylamide (PAM) by
viscometry and gel permeation chromatography (optional)
Aim: (a) To determine the intrinsic viscosity and molecular weight of polyacrylamide
(synthesized in experiment 1) using a Ubbelohde capillar
Experiment 11: PVC - Influence of plasticizer content and testing
Aim: (a) To make "plastisol" compositions (suspension of fine spherical particle of PVC
in a liquid like di-octyl phthalate, DOP), in which the PVC/DOP ratio is varied.
Ultrafiltration membranes: Synthesis and permeability studies.
To test commercial ultrafiltration membranes for separation of hemoglobin from
vitamin B1 2.
To form a polyethersulfone (PES) membrane by unsteady state phase sepa
Experiment 7: Characterization of uncrosslinked natural rubber from
rubber tree latex and of crosslinked natural rubber.
Aim: To study the stress-strain properties (and effects of time and temperature) of
uncross-linked natural rubber synthesized in the l
Experiment 13: Bead (suspension) polymerization of MMA and of
Aim: (a) To study the polymerization of MMA in water solutions of polyvinyl alcohol at
different stirring speeds and to measure the diameter of the PMMA beads thus formed
using a dial micr
Experiment 12: Networks:
A)"Epoxy" and "RTV Silicone"; B) Rapid step reaction accompanied
by foaming using Hypol.
(a1) To study the cross-linking of epoxy/amine using two commercial kits: "5 Minute
Epoxy" and "Epoxy Patch".
(i) To determine the range
Experiment 10: Polymerization of methyl methacrylate (MMA) in
bulk to form PMMA.
Aim: (a) To study the bulk polymerization of undiluted MMA to PMMA initiated by a
single radical initiator at elevated temperature and to determine volumetric shrinkage after