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Romania
Citizenship:
Romania
Ph.D. degree award:
Monica-Mirela
Duldner
Senior Researcher
-
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Researcher
>20
years
Personal public profile link.
Curriculum Vitae (13/09/2021)
Expertise & keywords
(functionalized) oligoester structures , co(polyesters) with special properties ,
Chemical recycling of PET and polyurethane foams wastes.
additives for (nano)composites , (coil)coatings, adhesives, cellular materials
Projects
Publications & Patents
Entrepreneurship
Reviewer section
Cellular materials with thermal insulation and fire resistance properties, via energetic efficient recycling process of PET wastes, for minimizing heat loss in civil and industrial buildings
Call name:
Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1388
2014
-
2017
Role in this project:
Partner team leader
Coordinating institution:
CENTRUL DE CHIMIE ORGANICA AL ACADEMIEI ROMANE "C.D.NENITESCU"
Project partners:
CENTRUL DE CHIMIE ORGANICA AL ACADEMIEI ROMANE "C.D.NENITESCU" (RO); Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); EUROPLASTIC S.R.L. (RO)
Affiliation:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Project website:
http://ccocdn.ro/index.php?id=21
Abstract:
The present project proposal refers to a sustainable process of obtaining rigid polyurethane (PUR) foams, cellular materials with excellent thermal insulating and fire resistance properties. The process consists in chemically recycling poly(ethylene terephthalate) (PET) wastes, using as depolymerization and/or modification agents renewable materials, mainly carbohydrates and natural oils derivatives. Novel modified organocatalytic systems, different from conventional metallic compounds, will be developed and optimised in order to increase process performance, maximize energy efficiency and eliminate the need for solvents
The scientific challenge of the project consists in tailoring the novel catalytic systems, in order to drastically reduce energy consumption associated to the depolymerization reactions of PET wastes (in particular in the presence of some renewable materials), and enhance catalytic activity for these specific reactants, by using theoretical modelling, as well as experimental studies. In this respect, researh will be conducted in two main directions: i) modifying existing organocatalysts, in order to improve their performance or their stability; ii) proposing new organocatalyst that have not been used yet in catalyzed PET solvolysis. A library of new modified organocatalysts and/or combinations thereof, with synergistic effect, suitable for selective solvolytic attack of PET by various cleavage agents, will be, finally, provided. Optimal versions will be selected, in order to be used to further develop the technology for rigid PUR foams preparation, from PET wastes and renewable resources.
Lab-scale technologies for synthesis of selected catalysts will furnish information, useful for modifying commercial organocatalysts into new structures, or use new organocatalysts for PET chemical recycling, in order to apply such energy efficient technologies, on industrial scale.
The main objective of the project consists in developing a series of oligoester-poliols with tuned chemical structure (i.e. rigid and/or flexible moieties content) and properties (adequate for specific applications), starting from PET wastes and renewable materials, by using the correlations between reaction parameters (including organocatalysts), the products’ chemical structure and target properties. Using these oligoesters and designing the foams formulations, polyurethane and polyisocyanurate thermo-insulating rigid foams with tailored chemical structure will be obtained, adapted for various applications and showing (in some imbodiments) improved physico-mechanical and fire resistance properties The innovative and flexible pilot-scale technology for oligoester-polyols synthesis, using organocatalysts, as well as PET wastes and renewable resources as raw materials, would represent an exemplary case of meeting “green chemistry” standards by drastically reducing experimental conditions, eradicating the need for organic solvents, recycling a plastic waste which is accumulating in landfields and is not biodegradable, and providing, instead, innovative eco-friendly products, for long term applications. A innovative and flexible pilot-scale technology for PUR thermo-insulating rigid foams preparation using the respective oligoester-polyols will be developed, as well.
As a total result, a sustainable technology, with low energy consumption, significantly reducing the price of rigid polyurethane foams, would provide an exceptional solution to replace materials commonly used for insulation in buildings with new materials exhibiting outstanding properties and available for various applications, from building envelope to insulations for utility routes.
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DRUG DELIVERY HYBRIDS BASED ON POLYMERS AND POROUS CLAY HETEROSTRUCTURES
Call name:
Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-1432
2012
-
2016
Role in this project:
Coordinating institution:
UNIVERSITATEA POLITEHNICA DIN BUCURESTI
Project partners:
UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); CENTRUL DE CERCETARE SI PRELUCRARE A PLANTELOR MEDICINALE PLANTAVOREL SA (RO); METAV - CERCETARE DEZVOLTARE S.R.L. (RO)
Affiliation:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Project website:
http://www.tsocm.pub.ro/cercetare/DELPOCLAY
Abstract:
The research project is focused on the synthesis of new hybrid materials based on polymers and various organophylized porous clay heterostructures designed for controlled delivery of drugs which exhibit a low water solubility and high toxicity.
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EXPLOITATION OF SPONTANEOUS FLORA RESOURCES BY NANOTECHNOLOGY FOR THE OBTAINING OF HIGH BIOACTIVE HYPERICIN CONCENTRATES
Call name:
Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-0548
2012
-
2016
Role in this project:
Coordinating institution:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Project partners:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); UNIVERSITATEA BUCURESTI (RO); CENTRUL DE CERCETARE SI PRELUCRARE A PLANTELOR MEDICINALE PLANTAVOREL SA (RO)
Affiliation:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Project website:
http://www.icechim-pd.ro/en/pol_hitech/polimeri_hitech_spoflorahyp_en.html
Abstract:
The naphthodianthrones hypericin and pseudohypericin occur in the flowers and leaves of SJW. Hypericin act as an antibiotic and non-specific kinase inhibitor. Hypericin, is being clinically evaluated as an antiviral agent in the treatment of human immunodeficiency virus (HIV) infection. Hypericin was proven to be anti cholesterol and useful for blood circulation. In addition, hypericin is under research as an agent in photodynamic diagnosis (PDD) and therapy (PDT), of cancer.
The project target is to elaborate the production technologies for molecular imprinting of polymers with hypericin 1 enantiomer and for using these new materials in selective separations (MISPE), in order to obtain high bioactive concentrates of hypericin. This will allow the better exploitation of the resources of spontaneous flora and hereby to obtain by the “green chemistry” approaches dietary supplements able to prevent or to cure some diseases of the population. The main novelty of the project proposal is that it is intended to obtain molecularly imprinted polymer materials using as template the enantiomer 1 of hypericin, the materials being appropriate for preparative extraction of this enantiomer from primary SJW extracts. The second novelty of the project is the identification of technological parameters for MISPE separation of hypericin on the new materials. The third novelty of the project is the obtaining of high bioactive dietary supplements (concentrates) of hypericin. The many original idea involved in the project realization insures the deposition of at least 2 patent askings.
The hypericin concentrates that we intend to produce from St. John’s Wort are a world novelty. Such products are not yielded in Romania or abroad. Their enhanced bioactivity in preventing or curing some very dangerous diseases such as cancer, HIV, blood circulation disorders and depressions, will enable them to penetrate quickly on national and European markets.
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PERFORMANT COMPOSITE ARMOURES FOR MULTIPLE PROTECTION
Call name:
PN II 82-097/2008
2008
-
2011
Role in this project:
Key expert
Coordinating institution:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Project partners:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO)
Affiliation:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Project website:
Abstract:
Read more
Biodegradable coating materials generated from aqueous dispersion of co-polyesters, obtained by chemical recycling of PET waste
Call name:
PN II 31-044/2007
2007
-
2010
Role in this project:
Key expert
Coordinating institution:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Project partners:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); CENTRUL DE CHIMIE ORGANICA AL ACADEMIEI ROMANE "C.D.NENITESCU" (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU PEDOLOGIE, AGROCHIMIE SI PROTECTIA MEDIULUI - ICPA BUCURESTI (RO)
Affiliation:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Project website:
http://www.icechim.ro/polimeri/proiecte/biocopet/index.php#etape
Abstract:
Biodegradable coating materials obtained from co polyesters prepared from PET wastes, chemically modified for achieving biodegradability, water dispersability and a suitable glass transition temperature, might be used for coating fertilizer granules for slow release effect, due to the slow biodegradation of the polyester coating.
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Recycling technologies of wastes from phthalic anhydride manufacture by the oxidation of o-xylene process
Call name:
28 / 201234 / 2006
2006
-
2007
Role in this project:
Project coordinator
Coordinating institution:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Project partners:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); CENTRUL DE CHIMIE ORGANICA AL ACADEMIEI ROMANE "C.D.NENITESCU" (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); OLTCHIM SA (RO)
Affiliation:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Project website:
Abstract:
Wastes from phthalic anhydride manufacture by the oxidation of o-xylene process, were successfully used for preparing polyester-ether suitable for rigid polyurethane foams by semiesterification with diols followed by alkoxylation reactions
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Chemical recycling technology for polyethylene terephthalate waste from food packaging, in order to obtain PUR insulating foams
Call name:
PNCDI 490/2004
2004
-
2006
Role in this project:
Project coordinator
Coordinating institution:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti
Project partners:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO); CENTRUL DE CHIMIE ORGANICA AL ACADEMIEI ROMANE "C.D.NENITESCU" (RO); UNIVERSITATEA POLITEHNICA DIN BUCURESTI (RO); OLTCHIM SA (RO)
Affiliation:
Institutul National de Cercetare-Dezvoltare pentru Chimie si Petrochimie - ICECHIM Bucuresti (RO)
Project website:
Abstract:
Polyester-poyether polyols for rigid polyurethane foams were obtained by PET wastes gycolysis followed by semiesterification with phthalic anhydride and alkoxylation
Read more
FILE DESCRIPTION
DOCUMENT
List of research grants as project coordinator
Download (10.65 kb) 18/09/2017
List of research grants as partner team leader
Download (10.08 kb) 18/09/2017
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects
[T: 0.3662, O: 212]