National university \"lvivska polytechnica\" department of organic chemistry icon

National university "lvivska polytechnica" department of organic chemistry




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НазваNational university "lvivska polytechnica" department of organic chemistry
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NATIONAL UNIVERSITY "LVIVSKA POLYTECHNICA"





DEPARTMENT OF ORGANIC CHEMISTRY


PEROXIDE COUMPOUNDS, INITIATORS, COPOLYMERS, MODIFIERS & ASSOCIATED REAGENT


CATALOG OF PRODUCTS


Lviv  Ukraine  2010


With the aid of our products and scientific approaches, we can help you to solve your problems:

  • synthesis of initiators of the given structure, and with the necessary properties;

  • creation (selection) of effective initiation systems, ecologically clean systems inclusive, for performing radical polymerization via different techniques;

  • design of interfacial layers in polymer colloidal systems;

  • modification (activation) of the surface of disperse mineral fillers and pigments for composites;

  • formation of polymer dispersions of the "core-shell" type;

  • production of adhesives with thermo- and electroconductive properties.


We carry out investigations on contract in the field of the Chemistry of Peroxides, Polymer Peroxides, Polymer Composites and the Processes of Interfacial Layer Formation.


Head of the Department of Organic Chemistry

Professor, Doctor of Sciences


Stanislav A.Voronov


^ For more information, please, contact:

Prof. S. A. Voronov

National University "Lvivska Polytechnica"

12, S. Bandera St.,

Lviv 79013, Ukraine

Tel.: (+380 322) 39-85-50; 39-87-71

Fax: (+380 322) 74-43-00

E-mail: stanislav.voronov@polynet.lviv.ua


^ National University "Lvivska Polytechnica"

Department of Organic Chemistry (Lviv, Ukraine)


The Department was established more than 100 years ago. The founder of the modern scientific school was the world-known scientist -- Prof. T. Yurzhenko. The main scientific direction, which has been developed during the last 40 years, is the synthesis of radical initiators including multifunctional peroxides. Besides, the creation of composite polymer materials with specific properties is performed on the basis of those peroxides. The scientific potential of the Department consists of 50 employees including 16 Ph.D. (Candidates of Sciences) and Doctor of Sciences having a wide working experience in this branch. There are extensive publication achievments in this scientific branch -- about 500 scientific articles and 300 author's certificates (patents). The Department is mainly equipped with the necessary devices and computers. Three small scientific-production enterprises are formed at the Department.

The following materials, their synthesis methods, and application were elaborated.

1. Functional radical initiators for novel processes:

# peroxide monomers for oligomers, polymers, and surfactants containing peroxide groups;

# cross-linking agents for rubbers and polyolefines on the basis of alkylbenzene derivatives;

# compounds with two or more initiating centers of different nature (hydroperoxide, peroxyester, azo- and photoinitiators) for the synthesis of polymers with terminal reactive functional groups;

# functional peroxides containing halogenalkyl, hydroxyl, carbonyl, amino, thiol, thiolalkyl, anhydride, chloroanhydride and other functional groups.

2. Polyfunctional oligomeric peroxides for utilization as:

# emulsifier-initiators of the water dispersion polymerization of vinyl and divinyl monomers;

# oligomeric peroxide emulsifiers with intentional colloidal-chemical properties, oleo- and water-soluble emulsifiers that can solubilize organic substances of different nature;

# stabilizers of artificial dispersions of the polyester, epoxide and other resins and polymers;

# emulsifiers for the obtaining of high-stable direct and inverse emulsions -- ecologically clean way to gain the polymer and rubber emulstions (sewage does not contain emulsifiers);

# surface modifiers of mineral and organic fillers for polymers;

# surface-active, biphilic cross-linking and vulcanizing agents for unsaturated and saturated polymer systems.

3. The synthesis of adsorbents using a method of radical graft polymerization on the surface of inorganic carriers. The universal technology allows to apply the coatings on the carriers of different nature.

4. Water- and oleo-soluble oligoperoxides for systems containing the intentional quantity of medicine combinations: antibiotics, sulfamidic substances, etc or their mixtures.

5. Production and application methods of adhesives incorporating peroxide groups, including aprets for fibers and fillers (carbon fibers, fiber-glass, cords made of artificial and synthetic fibers). Modifiers based on polymaleate esters, polyketone esters and polysulfone were synthesized and utilized on the fibers as cross-linking agents.

8. Production methods for obtaining synthetic/artificial latexes and aqueous polymer dispersions with particle sizes able to be regulated were elaborated for the systems:

# which do not contain emulsifiers;

# with complex structure of latex particles, e.g. "core - reactive shell";

# filled for use as aprets and film-forming agents, adhesives, bases of varnishes and paints, magnetic and fluorescent polymer dispersions for immunodiagnostics, bioactive adhesives for medical applications, monodisperse microspheres, high effective sorbents for the separation of biopolymers, immunoanalysis and cell growth, etc.

7. A little wasteful and wasteless methods for obtaining functional organic peroxides with a structure defined by the customer.

8. Solid phase catalysts for heterogeneous organic syntheses on the basis of inert, chemically stable fibers and methods of their synthesis.

9. Peroxydized extenders (filling agents), e.g. peroxydized chalk as an extender of polystyrene. Such polymerization-filled polystyrene possesses a conventional physico-mechanical properties with simultaneous economy of monomer.

10. Peroxydized pigments (TiO2, ZnO, Al2O3, talc, black carbon, ferrites, iron oxides and others) with enhanced dispersibility and sedimentation resistance in aqueous and organic media. Encapsulation of pigments and extenders by the method of graft polymerization. Possible synthesis of of polyacrylate shells, fluorocontaining monomer, oligoimid acrylates with enhanced thermal stability. Encapsulated extenders can be easily redispersed -- a ten-fold effect of the improvement of dispersibility is attained, e.g. into alkyd varnish.

11. The synthesis of thin polymer dielectric films with thickness of about 0,1 micrometer on the surface of inorganic materials (e.g. on the surface of silicium monocrystals). The films can be formed on the surface of dispersed metals, semiconductors and ferrites, carbonate and metallic fibers and fabrics.


Table of content


^ A Peroxide Compounds 4

A-i Organic Hydroperoxides 4

A-ii Organic Peroxides 5

A-iii Peroxy Esters 7

A-iv Peroxidic Monomers 9

A-v Organosilicon Peroxides 9

B Initiators with Initiating Sites of Different Nature 10

B-i Hydroperoxides-Peroxides 10

B-ii Azo-Peroxides 10

B-iii Epoxide-Azo-Initiators 10

B-iv Peroxide Photoinitiators 11

^ C (Hydro)peroxide Copolymers & (Co)oligomers 12

C-i Oligomer & Copolymers based on

2-hydroperoxy-2-methyl-5-hexene-3-yne (A-i-3) 12

C-ii Copolymers based on

2-tert-butylperoxy-2-methyl-5-hexene-3-yne (A-ii-3) 12

D Latexes & Fillers Containing Peroxide Groups 14

D-i Latexes 14

D-ii Fillers 14

^ E Associated Reagents 15

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