Jousheed Pk

Jousheed Pk
Excel Industries Limited · Polymer

PhD

About

10
Publications
6,428
Reads
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184
Citations
Introduction
Presently I am working as the Head of Research and Development Department of very reputed chemical company at Mumbai. During my PhD and PDF research works, I have focused my research in Organic Chemistry, Polymer Chemistry, Nanotechnology and Materials Chemistry. My current projects are Synthesis of polymer additives to enhance the properties of various kinds of polymer systems, Specialty molecules based on phosphites and phosphates etc.
Additional affiliations
August 2007 - August 2011
Incheon National University
Position
  • PhD
November 2014 - present
Indian Institute of Science Education and Research, Bhopal
Position
  • PostDoc Position
March 2013 - September 2014
Bilkent University
Position
  • PostDoc Position
Description
  • Conjugate Polymers for Biomedical Applications

Publications

Publications (10)
Article
Oligomer nanoparticles (OL NPs) have been considered unsuitable for solid-state lighting due to their low quantum yields and low temperature stability of their emission. Here, we address these problems by forming highly emissive and stable OL NPs solids to make them applicable in lighting. For this purpose, we incorporated OL NPs into sucrose ma...
Article
Full-text available
A series of blue, green and red emitting polymers that are appropriately functionalized with alkyne and azide functional groups have been prepared and clicked together to construct of bi-layered and tri-layered white emitting core-shell type nanoparticles. Here it was also demonstrated the use of these organic hetero-nanoparticles as colour convert...
Conference Paper
Full-text available
In this study, we present the design, synthesis and characterization of water-dispersible conjugated polymer nanoparticles with tunable emission wavelengths for their potential applications in the areas of white organic light emitting diodes. Blue, green and red emitting polymers carrying azide or alkyne groups are utilized and assembled together t...
Article
Full-text available
In this article, pH-responsive near-infrared emitting conjugated polymer nanoparticles (CPNs) are prepared, characterized, and their stabilities are investigated under various conditions. These nanoparticles have capacity to be loaded with water insoluble, anticancer drug, camptothecin (CPT), with around 10% drug loading efficiency. The in vitro re...
Article
Here we report the synthesis of nanoparticles based on a conjugated oligomer which is synthesized through Heck-coupling of divinylfluorene and dibromobenzothiodiazole monomers. These water dispersible nanoparticles emit in the region of red tailing to near-infrared region of the spectrum with high fluorescent quantum yield and brightness. The nanop...
Article
Here, we describe the optical and thermal isomerization kinetics, and photoinduced realignment properties of 2-nitro-4-methoxy-azobenzene tethered to an azacrown-type multi-cation (HNA) or a linear cationic poly(methacrylamide) (PNA) in solution and in a multilayered film. The thermal back-isomerization of HNA in solution followed 'zeroth-order' ki...
Article
In the present article, we present a new and convenient optical method for the preparation of self-standing polyelectrolyte multilayer films. This method employs the disassembly of a sacrificial layer stratum composed of five poly(acrylate, merocyanine) PMC/poly(diallyldimethylammonium chloride) PDADMAC bilayers, which is triggered by the irradiati...
Article
This paper describes a pH-responsive multilayer film composed of two layered components, namely poly(allylamine hydrochloride) (PAH) and a copolymer of acrylic acid and [1,3]oxazine-modified acrylate (POA). The oxazine ring is an acidochromic chromophore and opens to form either cationic 3H-indolium or anionic hemiaminal in a pH-dependent manner. T...
Article
Toward the realization of nanoscale device control, we report a novel method for photoregulation of ion flux through a polyelectrolyte multilayer membrane by chromophore orientation that is adjusted either by illumination at normal incidence or by slantwise irradiation at an angle of 10 degrees with respect to the surface. Our results indicate that...

Questions

Questions (6)
Question
Dear All,
I have a question to my dear polymer experts...
Is there any internal donors use in Avant Z501 and Z509 catalyst (for pipe grade and film grade)., (as in Avant Zn for PP, they use phthalate, diether, succinate etc as internal donors) I tried to find out, but I could not
Can you guys please help me? If uses, what are the ineternal donors
Question
Dear All,
I am searching for an independant research lab (or university lab) to evaluate our custom designed olefine catalysts (especially for HDPE pipe grade - 100). Could you please help me...?
Question
Dear all,
Could anyone suggest me, where I can purchase Ziegler-Natta catalyst (2nd or 3rd generation, MgCl2 supported TiCl4) for polymerization of propylene? I have tried in Sigma Aldrich (Merck) and TCI, but they are not supplying it. My requirement is 5-10 g.
Thanks...
Question
Hi, I am using 3-mercapto propionic acid for an organic reaction as co-catalyst (linker molecule). But it imparting some color impurities to my product and I want to omit it from my reaction. But if I am not using this the time cycle is more and yield is less. So I want to use some other linker molecule for the same reaction  instead of 3-mpa. Any one can suggest any other possible molecule. (The reaction is between 4-hydroxy acetophenon and phenol in presence of dry HCl to get 1,1,1 (tris hydroxy phenyl)methane

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