Expert Details

Expert in Polymer Chemistry, Optical Polymers, Organic Chemistry

Expert ID: 726250 Israel

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Acrylic resins or "acrylics" as they are more commonly known in the trade, are dominated by a relatively few number of molecules such as butyl acrylate and methyl methacrylate. However by esterifying acrylic or methacrylic acid it is possible to synthesize hundreds of other monomers whose properties are determined by the alkyl side group. By copolymerizing different acrylate monomers with different comonomers it is possible to achieve an infinite range of polymer properties. For much of his carreer, Expert has synthesized new acrylic monomers and copolymerized them with various other monomers to achieve copolymers with unique optical, flame-retardant, porosity and mechanical properties. These copolymers have found applications as flame retardants, light diffusers, adhesives and barrier films. The technology of the production of the polymer is often dependant on the application. The monomers may be polymerized in water to give a latex (emulsion in the U.K.) or cast in bulk to give a transparent lens or film.If an adhesive is required it is possible to polymerize the monomers in an organic solvent which will then be used as the carrier for the adhesive. Expert has thus been able to tailor-make many polymers and copolymers to meet the exact polymer properties needed by his clients.

Applied Chemistry and applied organic chemistry are broad terms which imply that your chemical research is directed at achieving a specific objective or solving a defined problem rather than synthesizing molecules for curiosity only. From the very outset of his professional career, Expert has been fascinated by the industrial applications of chemistry. Subsequent years saw him employed in factories for the production of PVC, pesticides and later in office equipment. In between he kept a foot in academia brushing up his synthetic skills. No field of chemistry is more "applied" than polymer chemistry. Its applications scan heavy industry, transportation, materials and health. Expert’s exposure to each and every one of these fields has given him the breadth needed to apply polymer chemistry and synthetic organic chemistry as needed to solve specific problems in many fields. For example, in one specific project Expert took a very basic six-step synthesis for a drug and developed it into a high yield, high purity process that is now undergoing stage II screening.

While much maligned, bromine compounds remain the most effective flame retardants for synthetic materials. Expert was an "in-house" consultant for Bromine Compounds Ltd. for fifteen years. During that time he helped develop new monomers containing bromine from the stage of their laboratory synthesis, through their piloting, scale-up and industrial scale production. He was also instrumental in finding new applications for these monomers in addition to their flame retardancy. During this time he became familiar with other aspects of flame retardancy such as non-halogen flame retardant additives and the various health and environmental issues surrounding these compounds.

One of the interesting properties of Bromine is that its presence in a molecule increases the refractive index significantly. From his work in Bromine, Expert developed a life-long interest in optical polymers. He has thus worked on new ophthalmic polymers, polymers for micro-optics and polymers for laser lithography. He is presently involved in a project requiring fluorescent polymers. Many of these projects have been supported by the European Commission. Whereas Bromine is good for increasing refractive index, Fluorine is good in raising the Abbe Number and improving Near Infra-Red transparency. Recent projects in which Expert has been involved took advantage of all of these properties.

There are three basic methods for adhering two plastic pieces together, using an adhesive, introducing energy such as heat into the bond and solvent adhesion. Expert was approached by a manufacturer of hospital equipment who wished to glue together different components made of different plastics. Since most polymers are very selective in their solvents, in most cases these plastic did not have a common solvent which could adhere both. Expert devised a procedure whereby a "common" solvent could be prepared by the judicious selection of solvent mixtures. These same solvent mixtures remain in use by the client even thought the company has changed owners twice since the original work was performed.

He developed flexible light diffusers for use in Photodynamic cancer treatment.He lead a team that developed the production of a polymeric flame retardant.He upscaled a process for the production of nanoparticles for use in water treatment.He developed an acrylic emulsion for coating on flowers to increase their shelf life.He scaled up a laboratory process for a new drug that is now in stage II clinical trials.

Education

Year Degree Subject Institution
Year: 1966 Degree: BSc Subject: Chemistry & Physics Institution: Kings College London, U.K.
Year: 1971 Degree: MSc Subject: Polymer Chemistry Institution: Weizmann Institute of Science, Israel
Year: 1974 Degree: PhD Subject: Gas Phase Reactions Institution: Weizmann Institute of Science, Israel

Work History

Years Employer Title Department Responsibilities
Years: 1987 to Present Employer: Undisclosed Title: CEO/Owner Department: Responsibilities: Founded private consultancy company that I still manage.
Years: 1982 to 1987 Employer: Weizmann Institute of Science, Israel Title: Researcher Department: Materials Research Dept, Responsibilities: He worked on the development of a process for the industrial production of tribromostyrene monomer.
Years: 1980 to 1982 Employer: Indigo Ltd (Now H-P) Title: Administrative Manager Department: Indigo Division Responsibilities: General Administration of Start-up company.
Years: 1974 to 1980 Employer: Makhteshim Chemical Works Title: Administrative Manager of R&D Division Department: R&D Division Responsibilities: 1. He set up the catalyst research laboratory for gas phase reactions.
2. He was later made the administrative manager of the R&D Division with responsibility for R&D budgeting and government funding.

Government Experience

Years Agency Role Description
Years: 2007 to 2005 Agency: MoD (Israel) Role: Consultant Description: He developed some special adhesives.
Years: 1996 to 1996 Agency: MoH (Barzili Hospital) Role: Consultant Description: He purified polymers for use in artificial insemination (IVF).

International Experience

Years Country / Region Summary
Years: 2007 to 2007 Country / Region: USA Summary: He was asked to evaluate a new drug delivery system based on an electro-responsive polymer for a US corporation.
Years: 2002 to Present Country / Region: Europe Summary: He has participated in five international consortiums funded by the European Commission in the fifth, sixth and seventh frameworks. The topics researched included polymers in the reduction of green-house gases from manure, nanoclays as flame-retardants, polymers in micro-optics, polymers for laser lithography and polymers for spectral modification.

Career Accomplishments

Associations / Societies
Member and former treasurer of the Israel Polymer & Plastics Society.
Awards / Recognition
He received the Shmuel Yaroslavsky Memorial Prize for Industrial Reasearch for his PhD Thesis. The prize was awarded by the Scientific Committee of the Weizmann Institute of Science, Rehovot,Israel.
Publications and Patents Summary
He has five publications and more than sixteen patents on various aspects of chemistry and polymer technology. Many clients have also gained patents based on work that he has performed for them.

Additional Experience

Expert Witness Experience
He was an expert witness before district courts on issues relating to product negligence and patent infringement. In most cases the judges accepted his professional opinion and made their decisions accordingly.
Marketing Experience
He has broad experience in many industries since polymers are employed from pharmaceuticals, through biotechnology, medical devices, agriculture to the building and transport industries. Over the years he has consulted to most of these. In recent years recycling has become a frequently requested issue.
Other Relevant Experience
He is skilled in evaluating start-up projects both from the technological and business aspects.

Language Skills

Language Proficiency
Hebrew He is fully proficient in Hebrew.
French He has high-school knowledge of French.

Fields of Expertise

acrylic resin, elastomer chemistry, emulsion polymer, latex, plastic chemical property, polymer, polymer chemistry, synthetic organic polymer, applied chemistry, applied organic chemistry, chemistry, organic compound process development, fire-resistant plastic, fire-retardant polymer additive, optical polymer, plastic adhesion, plastic solvent, polymer adhesive, polymer bonding, theoretical chemistry, plastics reverse engineering, plastics patent, medical polymer selection, cellulose chemistry, plastic product development, plastic cleaning, Kraton block polymer, barrier polymer, heat-sealable polymer, dry polymer, epoxy chemistry, plastic discoloration, alkyl halide, polymer crystallinity, plastic substrate, glycolic acid, amorphous polymer, polymer degradation, plastic medical device, polymer crazing, diene polymer, polymer compatibility, macromolecule physical chemistry, prepolymer, polymer emulsion microencapsulation, parylene, electroluminescent polymer, polymer drug-delivery microsphere, composite recycled plastic, intrinsically conductive polymer, nonlinear optical polymer, crystalline-polymer structure-property relationship, electrically active polymer composite, organic reaction, plastic physical property, epoxide group, polymer application, coated polymer film drying, heat-shrinkable polymer film, addition reaction catalysis, high-polymer technology, ion chemistry, high-performance polymer, carbanion, plastic failure, plastic film, synthesis chemistry, liquid crystal thermoplastic polymer, polymer alloy, organic high polymer, engineering, organic compound, infrared polymer curing, rubber chemistry, qualitative organic chemistry, polymer extrusion, polymer additive, physical chemistry, petrochemistry, organic synthesis, organic photochemistry, organic chemical structure, organic acid, ionomer, inorganic chemistry, induction polymer curing, hydrophilic polymer, hydrocarbon chemistry, graphite epoxy composite, glass fiber polymer composite, fine chemical, biocompatible polymer, aromatic hydrocarbon, amide, aldehyde

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