@article {42793, title = {Amino functionalized oligoimides telechelics}, number = {2922/DEL/2010 A}, year = {2010}, month = {AUG}, type = {India Patents}, abstract = {

This invention relates to a process for the preparation of amino functionalized oligoimide telechelics. More particularly it relates to a process for the preparation of soluble oligoimide prepolymers which can be used as matrix resins that can be rapidly cured to form stable polyimides with amino end functionalities. The amino functionalized oligoimide telechelics are suitable for conversion into three dimensional polymeric systems through condensation chemistry such as reaction with oligo epoxies (epoxy-imide resins), polyacids (polyamide imides) and polyhalogenated compounds (poly amine - imides) to form crosslinked structures having enhanced thermal stability and mechanical strength. The polymers prepared by the process of this invention can be used as materials in advanced composites having high temperature stability.

}, author = {Dwivedi, Mayank and Rao, Locanindi Hari Sarvothama and Reddy, Krishna Mohan Srinivasulu and Dhanasekharan, Janakiraman and Rao, Bevara Madhusudana and Kumar, Sriperambudur Rajesh and Ponrathnam, Surendra and Rajan, Chelanattukizhakkemadath Raman and Deokar, Sarika Babasaheb and Mulani, Khudbudin Baban and Ghorpade, Ravindra V. and Bhongale, Sunil Sitaram and Nalawade, Archana Chetan and Sontakke, Kalpana Vishwanathrao and Shaikh, Wasif Abdul Lateef and Chavan, Nayaku and Qureshi, Mohammed Shadbar and Dhoble, Deepa Arun and Mule, Smita Atmaram and Bhosle, Sonali Madhavrao and Momin, Mohasin Shamshuddin} } @article { ISI:000298518600028, title = {Adsorption induced enzyme denaturation: the role of protein surface in adsorption induced protein denaturation on allyl glycidyl ether (AGE)-ethylene glycol dimethacrylate (EGDM) copolymers}, journal = {Colloids and Surfaces B-Biointerfaces}, volume = {90}, year = {2012}, month = {FEB}, pages = {184-190}, publisher = {ELSEVIER SCIENCE BV}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, abstract = {

The effects of protein size on adsorption and adsorption-induced denaturation of proteins on copolymers of allyl glycidyl ether (AGE)-ethylene glycol dimethacrylate (EGDM) have been studied. Different responses were observed for the amount of protein adsorbed and denatured on the polymer surface for different proteins (trypsin, alchol dehydrogenase from baker{\textquoteright}s yeast (YADH), glucose dehydrogenase (GDH) from Gluconobacter cerinus, and alkaline phosphates from calf intestinal mucosa (CIAP). Protein adsorption on the copolymer with 25\% crosslink density (AGE-25) was dependent not only on the size of the protein but also on the presence of glycoside residues on the protein surface. Adsorption and denaturation of proteins follows the order YADH \> trypsin \> GDH \>\> CIAP although the molecular weights of the proteins follow the order YADH \> CIAP \> GDH \> trypsin. The lack of correlation between amount of adsorbed protein and its molecular weight was due to the presence of glycoside residues on CIAP and GDH which protect the enzyme surface from denaturation. Enzyme stabilities in aqueous solutions of 1-cyclohexyl-2-pyrrolidinone (CHP) correlate well with the trend in denaturation by the copolymer, strongly suggesting that hydrophobic interactions play a major role in protein binding and the mechanism of protein denaturation is similar to that for water-miscible organic solvents. (C) 2011 Elsevier B.V. All rights reserved.

}, keywords = {1-Cyclohexyl-2-pyrrolidinone, Adsorption, Alcohol dehydrogenase, Alkaline phosphatase, allyl glycidyl ether, Denaturation, ethylene glycol dimethacrylate, Glucose dehydrogenase, Trypsin}, issn = {0927-7765}, doi = {10.1016/j.colsurfb.2011.10.022}, author = {Thudi, Lahari and Jasti, Lakshmi Swarnalatha and Swarnalatha, Y. and Fadnavis, Nitin W. and Mulani, Khudbudin Baban and Deokar, Sarika Babasaheb and Ponrathnam, Surendra} } @article {42779, title = {Amino functionalized oligo polyimides with enhanced storage stability}, number = {EP 11817412 A 20111228}, year = {2012}, month = {JUL}, abstract = {

The invention relates to an improved process for the preparation of amino functionalized oligomeric monomeric reactant type polyimides having higher stability. More particularly it relates to a process for the preparation of soluble imide prepolymers, used as matrix resins that can be rapidly cured with multi-functional moieties such as diepoxy, dicarboxyl, anhydride, diisocyanates to form crosslinked structures having enhanced thermal stability and mechanical strength.

}, author = {Dwivedi, Mayank and Rao, Locanindi Hari Sarvothama and Mohan, Srinivasulu Reddy Krishna and Dhanasekharan, Janakiraman and Rao, Bevara Madhusudana and Kumar, Sriperambudur Rajesh and Ponrathnam, Surendra and Rajan, Chelanattukizhakkemadath Raman and Tayal, Rajiv Kumar and Shadbar, Qureshi Mohammed and Chavan, Nayaku and Deokar, Sarika Babasaheb and Mulani, Khudbudin Baban and Ghorpade, Ravindra V. and Bhongale, Sunil Sitaram and Nalawade, Archana Chetan and Sontakke, Kalpana Vishwanathrao and Bhosle, Sonali Madhavrao and Mule, Smita Atmaram and Dhoble, Deepa Arun and John, Aruldoss and Shaikh, Wasif Abdul Lateef and Harikrishna, Reghunathan and Punitharasu, Vellimala and Momin, Mohasin Shamshuddin} }