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Flame retardancy effect of crosslinking of lignocellulose materials

Autor: Katarína Csomorová, Jan Pastýr, Karol Balog, Ivan Šimkovic, M. M. Micko

Publikováno v: Journal of Applied Polymer Science. 41:1333-1337

Dynamic and isothermal thermogravimetry (TG) was used for the study of flame retardancy effects caused by crosslinking of lignocellulose materials. This effect was also checked with the limited oxygen index (LOI) method. It was found that dynamic TG

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f01946d8dfbb987c95032495321db364
https://doi.org/10.1002/app.1990.070410540

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Novel cellulose derivative for the in-vitro adsorption of heparin from blood plasma

Autor: Miroslav Antal, M. M. Micko

Publikováno v: Carbohydrate Polymers. 22:15-17

The new carrier, bis (hydroxypropyl) imidazolium microcrystalline cellulose (BHP MCC) is presented in this paper. The novel carrier is capable of quantitative removal of heparin from heparin-containing plasma samples. Optimal reaction parameters for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9a5aa672061362dd17ba071f261c5cf5
https://doi.org/10.1016/0144-8617(93)90161-v

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Preparation of microcrystalline cellulose aminoderivatives

Autor: M. M. Micko, Miroslav Antal

Publikováno v: Carbohydrate Polymers. 19:167-169

Cellulose aminoderivatives were prepared by the reaction of microcrystalline cellulose (MCC) with alkylating agents 3-chlor-2-hydroxypropyltrimethyl-ammonium chloride (CHMAC) and 1,3-bis(3-chlor-2-hydroxylpropyl) imidazolium hydrogensulphate (BCHPIHS

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86c7a261a84613ee707aa7372ea0ab64
https://doi.org/10.1016/0144-8617(92)90157-l

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Influence of anionic form on thermal degradation of TMAHP–cellulose

Autor: M. M. Micko, Jozef Königstein, Ivan Šimkovic, Miroslav Antal, Vincent Mihálov

Publikováno v: Journal of Applied Polymer Science. 30:4707-4711

Trimethylammoniumhydroxypropyl (TMAHP)–cellulose in 10 anionic forms (F−, Cl−, Br−, I−, HSO, NO, OH−, HCO, H2PO, CH3COO−) was prepared, and the influence of each anion on thermal degradation in inert atmosphere was studied. With the hel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c7b11da762de049ee811a955f5d9d503
https://doi.org/10.1002/app.1985.070301217

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New aspects in cationization of lignocellulose materials. X. Thermooxidation of TMAHP–sawdust

Autor: Katarína Csomorová, Ivan Šimkovic, Miroslav Antal, M. M. Micko

Publikováno v: Journal of Applied Polymer Science. 38:1913-1917

With the help of dynamic and isothermic thermogravimetry in inert and oxidative atmosphere the thermooxidation of TMAHP–sawdust in individual anionic forms was studied. The values obtained indicate that the most resistant samples against thermooxid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a701cfdb3cd9a0fa2268362dee8d7d14
https://doi.org/10.1002/app.1989.070381012

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New aspects in cationization of lignocellulose materials. IV. Modification of aspen wood meal with quarternary ammonium groups

Autor: Miroslav Antal, Anna Ebringerová, Ivan Šimkovic, M. M. Micko

Publikováno v: Journal of Applied Polymer Science. 31:621-625

Holocelluloses prepared from clear and rotten aspen wood were gradually fractionated with 2.5% NH4OH, 4.5% NaOH, and 17.5% NaOH, respectively. A higher yield of polysaccharides (24.4%) was obtained from the rotten sample in comparison with clear wood

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::51fbd95de8dabe9ab4a071358b19798e
https://doi.org/10.1002/app.1986.070310226

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Genetic variation of extractives in the wood of trembling aspen

Autor: A. D. Yanchuk, M. M. Micko, I. Spilda

Publikováno v: Wood Science and Technology. 22:67-71

Thirteen clones of Populus tremuloides (Michx.) from central Alberta, Canada, were sampled to determine variation patterns within and among clones for benzene-alcoholwater extractives. Significant differences among clones were present; however, the b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c06089fa201ad7d6ebe2ec3dc7c16d5c
https://doi.org/10.1007/bf00353229

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New aspects in cationization of lignocellulose materials. III. Influence of delignification on reactivity and extractability of TMAHP–hemicelluloses

Autor: Miroslav Antal, Anna Ebringerová, M. M. Micko, Ivan Šimkovic

Publikováno v: Journal of Applied Polymer Science. 31:303-308

Beech sawdust samples with different lignin content were alkylated with 3-chloro-2-hydroxypropyltrimethylammoniumchloride (CHMAC). The yields and the degree of subtitution of trimethylammonium-2-hydroxypropyl (TMAHP) samples were similar. Differences

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47183497526bdef056b5b1abe016c97f
https://doi.org/10.1002/app.1986.070310201

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New aspects in cationization of lignocellulose materials. VI. Modification of steam-exploded aspen wood chips with quarternary ammonium groups

Autor: Anna Ebringerová, Miroslav Antal, Ivan Šimkovic, M. M. Micko

Publikováno v: Journal of Applied Polymer Science. 34:1779-1783

Holocellulose prepared from steam-exploded aspen wood was gradually fractionated with 2.5% NH4OH, 4.5% NaOH, and 17.5% NaOH, respectively. Some residual polysaccharides were extracted from the material in this way, but their yield was only about 5%.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1f27c1b4f3b6bf84246b78eca2d58b5
https://doi.org/10.1002/app.1987.070340501

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