Ivica Janigová

Publication Date: 2002

Publication Name: Polymer Degradation and Stability

Research Interests:
Materials Engineering, Chemical Engineering, POlymer degradation and stability, Differential scanning calorimetry, Annealing, and 8 moreReaction Time, DSC, Cooling Rate, Sec, Thermal Treatment, Point of View, Plasticizer, and Size Exclusion Chromatography

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Publication Date: 1994

Publication Name: European Polymer Journal

Research Interests:
Materials Engineering, Chemical Engineering, Kinetics, Silica, Surface Area, and Temperature Effect

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Publication Date: 2006

Publication Name: Polymer Degradation and Stability

Research Interests:
Materials Engineering, Chemical Engineering, POlymer degradation and stability, Differential scanning calorimetry, Time Dependent, and 3 moreMolecular weight, Ethylene Glycol, and Melting Temperature

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Publication Date: 2012

Publication Name: Vacuum

Research Interests:
Materials Engineering and Vacuum

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... J. Polym. Sci. 12, 1053 (1974). 2. W. Banks, M. Gordon, JR Roe and A. Sharpies. Polymer 4, 61 (1963). 3. MR Kamal and E. Chu. Polym. Engng Sci. 23, 27 (1983). ... Prog. Coll. Polym. Sci. 71, 145 (1985). 16. D. Dosk~ilovfi, B.... more

... J. Polym. Sci. 12, 1053 (1974). 2. W. Banks, M. Gordon, JR Roe and A. Sharpies. Polymer 4, 61 (1963). 3. MR Kamal and E. Chu. Polym. Engng Sci. 23, 27 (1983). ... Prog. Coll. Polym. Sci. 71, 145 (1985). 16. D. Dosk~ilovfi, B. Schneider, J. Jake[ and P. Schmidt. 7th Eur. Symp. ...

Publication Date: 1992

Publication Name: European Polymer Journal

Research Interests:
Materials Engineering, Chemical Engineering, and Silica

Poly(imide-siloxane) (PIS) block copolymers have been studied with respect to their structure and surface properties relationship. The relatively small amount of siloxane in PIS block copolymer, 10-20 wt.%, increased significantly the... more

Poly(imide-siloxane) (PIS) block copolymers have been studied with respect to their structure and surface properties relationship. The relatively small amount of siloxane in PIS block copolymer, 10-20 wt.%, increased significantly the contact angle of water due to the surface hydrophobization of the copolymer. The significant decrease of the surface energy of the PIS copolymer due to growth of the siloxane content was observed. The polar component of surface energy shows an intense decrease, whereas its dispersive component increases. The study of the morphology of PIS copolymers characterized by The X-ray Photoelectron Spectroscopy (XPS) analysis showed an excessive increase of Si on the polymeric surface. Scanning electron microscopy (SEM) shows a growth of the surface roughness by increase of the content of siloxane.

Publication Name: Chemicke Listy

Research Interests:
CHEMICAL SCIENCES

Publication Date: 2011

Research Interests:
Materials Engineering, Chemical Engineering, Kinetics, Sample Preparation, POlymer degradation and stability, and 10 moreDifferential scanning calorimetry, Nitrogen, Relative Humidity, Thermogravimetry, Thermal Analysis, Thermal Stability, Differential Thermal Analysis, Thermogravimetric Analysis, Polymer Blend, and Reaction Mechanism

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0912f50ba70528f20d000000.pdf20151012-16080-1jjhk3s.pdf

Publication Date: 2012

Publication Name: Vacuum

Research Interests:
Materials Engineering and Vacuum

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Publication Date: 2007

Publication Name: Polymer Engineering & Science

Research Interests:
Materials Engineering, Chemical Engineering, and polymer science and Engineering

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ABSTRACT The degradation of pure polymers such as polyethylene, polypropylene, polystyrene and poly(methyl methacrylate) in nitrogen and oxygen was characterized by means of non-isothermal thermogravimetry, chemiluminescence and... more

ABSTRACT The degradation of pure polymers such as polyethylene, polypropylene, polystyrene and poly(methyl methacrylate) in nitrogen and oxygen was characterized by means of non-isothermal thermogravimetry, chemiluminescence and differential scanning calorimetry. The link between the results of the different methods based on Bolland Gee scheme of polymer oxidation is described. From the set of parameters determined from the thermogravimetry, the rate constants based upon the sum of several temperature dependent first-order processes were calculated and compared with those obtained by an iso-conversional method derived for several heating rates. Competition between propagation of oxidation and depolymerisation to monomer is proposed to explain the differences in kinetic behaviour of the examined polymers.