A5017210061- biodegradable polymer synthesis and properties
- Silicone and Siloxane Chemistry
- Polymer composites and self-healing
- Advanced Polymer Synthesis and Characterization
- Synthetic Organic Chemistry Methods
- Mass Spectrometry Techniques and Applications
- Analytical Chemistry and Chromatography
- Analytical chemistry methods development
- Block Copolymer Self-Assembly
- Polymer Surface Interaction Studies
- Epoxy Resin Curing Processes
- Flame retardant materials and properties
- Polymer Nanocomposites and Properties
- Lignin and Wood Chemistry
Iowa State University
2013-2020
Sri Venkateswara University
2015
We report the fabrication of metal-coded molecularly imprinted polymers (MIPs) using hydrogel-based protein imprinting techniques. A Co(II) complex was prepared (E)-2-((2 hydrazide-(4-vinylbenzyl)hydrazono)methyl)phenol; along with iron(III) chloroprotoporphyrin (Hemin), vinylferrocene (VFc), zinc(II) protoporphyrin (ZnPP) and (PP), these complexes were introduced into MIPs as co-monomers for metal-coding non-metalloprotein imprints. Results indicate a 66% enhancement bovine serum albumin...
In this work, methacrylate polymers with different thermal and viscoelastic properties were synthesized from red oak lignin bio-oil. The bio-oil, also called pyrolytic (PL), consisted of various phenolic monomers oligomers average hydroxyl content 3.04 mol/mol. PL was first esterified amounts methacryloyl chloride acetyl to form methacrylates then subjected reversible addition–fragmentation chain transfer polymerization. Polymerization fully methacrylated caused gelation yield a cross-linked...
Here we report the synthesis and characterization of block copolymer/layered silicate (BCPLS) nanocomposites via surface-initiated ring-opening metathesis polymerization (SI-ROMP) norbornene cyclopentene from montmorillonite clay (MMT). The MMT particle surfaces were functionalized with a norbornene-terminated alkylammonium surfactant through ion exchange. Block copolymer brushes polymerized directly surface these platelets, yielding highly exfoliated nanocomposites. A fraction polymer...
Here we report microphase-separated poly(styrene-block-dimethylsiloxane) (PS-b-PDMS) as a reinforcing filler in PDMS thermosets that overcomes the long-standing problem of aging processing silica-reinforced silicone. Surprisingly, PS-b-PDMS reinforced composites display comparable mechanical performance to silica-modified analogs, even though modulus PS is much smaller than silica and there no evidence percolation with respect rigid domains. We have found few unique characteristics...
ABSTRACT Here we report the phase behavior of a family montmorillonite (MMT) block copolymer brushes (MBBs), novel class polymer nanocomposites. MBBs are comprised discrete MMT platelets encapsulated with brushes. These were synthesized via surface‐initiated atom transfer radical polymerization using halogenated alkylammonium surfactants to localize initiation sites on clay surfaces. Two styreninc MBB systems—poly(styrene‐ b ‐ n ‐butyl acrylate) and poly(styrene‐ t acrylate)—were prepared...