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USD 100 /hr
Hire Dr. Cristóbal L.
Venezuela
USD 100 /hr
35years Chemistry Professor Polymer&Natural Products 30 under&postgraduate Theses ChiefEditor Journal Avances en Química
Profile Summary
Subject Matter Expertise
Services
Writing
Technical Writing,
Copywriting
Research
Fact Checking,
Gray Literature Search,
Systematic Literature Review,
Secondary Data Collection
Consulting
Scientific and Technical Consulting
Product Development
Formulation
Work Experience
Professor
Universidad de los Andes, Mérida, Venezuela
May 1987 - Present
Education
Doctor en Química Aplicada
Universidad De Los Andes
April 1993 - December 1999
Licenciado en Química
Universidad De Los Andes
January 1979 - December 1997
M. Sc. en Química Aplicada
Universidad De Los Andes
September 1989 - September 1991
Bachiller en Ciencias
Liceo Tavera Acosta
1976 - 1978
Liceo JM Siso Martínez
September 1973 - July 1976
Escuela primaria Iron Mines No. 2
September 1967 - July 1973
Certifications
Publications
JOURNAL ARTICLE
Velásquez, C.L., Ramírez, M., Millán, E., Medina, A.(2012). Swelling studies and adsorption of safranin T by acrylamide/maleic acid/methylene-bis-acrylamide based hydrogels . E-Polymers.
Velásquez, C.L., Díaz, L.Z.(2011). Chitosan depolymerisation by potassium periodate | Despolimerización de quitosano con peryodato de potasio . Revista Latinoamericana de Metalurgia y Materiales. 31. (2). p. 195-202.
Lárez Velásquez, C.(2008). Some potentialities of chitin and chitosan for uses related to agriculture in Latin America | Algunas potencialidades de la quitina y el quitosano para usos relacionados con la agricultura en Latinoamérica . Revista Cientifica UDO Agricola. 8. (1). p. 1-22.
Lárez, C., Márquez, O.P., Márquez, J.(2006). Anodic oxidation and electropolimerization of salicylic acid | Oxidación anódica y electropolimerización del ácido salicílico . Revista Tecnica de la Facultad de Ingenieria Universidad del Zulia. 29. (1). p. 3-13.
Barrios, E.M., Mujica, G.A., Velásquez, C.L., Martínez, Y.(2006). Studies of the presence of dicarboxylic acids in the electrochemical synthesis of poly(aniline): Case poly(itaconic acid) . Journal of Electroanalytical Chemistry. 586. (1). p. 128-135.
Velásquez, C.L., Albornoz, J.S., Nava, J.U., Barrios, E.M., Velásquez, H.L.(2005). Conductimetric studies of chitosan in aqueous medium . Polymer Bulletin. 55. (3). p. 201-208.
Lárez V, C., Canción, F., Millán, E., Katime, I.(2002). Interpolymeric complexes of poly(itaconic acid) and chitosan . Polymer Bulletin. 48. (4-5). p. 361-366.
Lárez-V, C., Crescenzi, V., Ciferri, A.(1995). Phase Separation of Rigid Polymers in Poor Solvents. 1. (Hydroxypropyl)cellulose in Water . Macromolecules. 28. (15). p. 5280-5284.
Làrez-V, C., Crescenzi, V., Dentini, M., Ciferri, A.(1995). Assemblies of amphiphilic compounds over rigid polymers: 2. Interaction of sodium dodecylbenzenesulfonate with chitosan-scleraldehyde gels . Supramolecular Science. 2. (3-4). p. 141-147.
Larez, Cristobal, Marquez, Jairo, Perdomo, Gilberto, Marquez, Olga P.(1992). Electrochemical polymerization of β-2-furylacrylic acid . New Polymeric Materials. 3. (3). p. 155-161.
Larez, V., Cristobal, J., Perdomo Mendoza, G.A.(1991). Unsaturated polyester - 4. Polyester from maleic anhydride and 1,5-pentanediol . Polymer Bulletin. 26. (3). p. 313-317.
Larez V., C.J., Mendoza, G.A.P.(1991). Unsaturated polyesters, III. Polyester from maleic anhydride and 1,4‐butylene glycol . Journal of Applied Polymer Science. 43. (9). p. 1605-1607.
Cristobal, L.V., Perdomo Mendoza, G.A.(1990). Unsaturated polyesters - 2. Polyester from maleic anhydride and 1,3-propylene glycol . Polymer Bulletin. 23. (6). p. 577-581.
Cristobal, L.V., Mendoza, G.A.P.(1989). Unsaturated polyesters - 1. Polyester from maleic anhydride and ethylene glycol . Polymer Bulletin. 22. (5-6). p. 513-519.
CONFERENCE PAPER
Cristobal, Larezv, Gilberto, Perdomo M.(1990). Polyesterification and cis-trans isomerization: A simultaneous study . Journal of Applied Polymer Science: Applied Polymer Symposium. (49). p. 59-66.