An A2 + CB2 approach to the synthesis of hyperbranched polyester polyol and application in PU coatings / Amardip M. Patil in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 3 (05/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 3 (05/2024) . - p. 1085-1095 Titre : An A2 + CB2 approach to the synthesis of hyperbranched polyester polyol and application in PU coatings Type de document : texte imprimé Auteurs : Amardip M. Patil, Auteur ; Dhammanand J. Shirale, Auteur ; Harishchandra D. Jirimali, Auteur ; Ramanand N. Jagtap, Auteur Année de publication : 2024 Article en page(s) : p. 1085-1095 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse morphologique Caractérisation Enrobage (technologie) Polymères -- Synthèse Polymères ramifiés Polyuréthanes Résistance chimique Revêtements -- Analyse Revêtements organiques Stabilité thermique Surfaces -- Analyse Index. décimale : 667.9 Revêtements et enduits Résumé : In the present work, neopentyl glycol was used as a core for the synthesis of hyperbranched polymer by melt condensation polymerization with 2,2-Bis(hydroxymethyl) propionic acid. The A2 + CB2 synthetic method was used where neopentyl glycol was A2 and 2,2-Bis(hydroxymethyl) propionic acid was CB2. The acid value and hydroxyl values of the synthesized hyperbranched polymer were determined according to ASTM D974 and ASTM D4274, respectively. The molecular structural characterizations of hyperbranched polyol were determined by FTIR and NMR spectroscopy techniques. The hyperbranched polyurethanes were synthesized by using hyperbranched polyol and crosslinking agent isophorone diisocyanate in different mole ratios of OH:NCO (1:1.2, 1:1.4, 1:1.6). These mixtures were used as coating materials on mild steel panels and glass plates. The coating properties of polyurethanes such as gloss and cross-cut adhesion were studied. The immersion test of coatings was carried out in HCl, NaCl, NaOH and water. The electrochemical properties of the coatings were examined using an electrochemical method in electrolytes consisting of HCl, NaOH, and NaCl. Thermal stability and surface morphology were studied by TGA and SEM, respectively. Note de contenu : - EXPERIMENTAL SECTION : Materials - Synthesis of hyperbranched polyester polyol (HBP) from neopentyl glycol (NG) - Preparation of hyperbranched polyurethane (HBPU) - Characterizations - Functional group analysis - Structural study - Coating properties - Chemical resistance - Electrochemical study - Thermogravimetric study - Study of scanning electron microscopy images - RESULTS AND DISCUSSION : Study of FTIR and NMR spectra - Coating properties - Chemical resistance - Electrochemical study of the HBPU coatings - Thermogravimetric analysis of HBPU - Study of scanning electron microscopy images DOI : https://doi.org/10.1007/s11998-023-00875-3 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-023-00875-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41078 [article]

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Banned chemicals and their alternatives in Polymer and Paint Industries / U. Shah in PAINTINDIA, Vol. LX, N° 4 (04/2010)

[article]  inPAINTINDIA > Vol. LX, N° 4 (04/2010) . - p. 57-75 Titre : Banned chemicals and their alternatives in Polymer and Paint Industries Type de document : texte imprimé Auteurs : U. Shah, Auteur ; G. N. Manvi, Auteur ; Ramanand N. Jagtap, Auteur Année de publication : 2010 Article en page(s) : p. 57-75 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Charges (matériaux) Ignifugeants Composé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface. Moussants Pigments Produits chimiques -- Suppression ou remplacement Produits chimiques -- Toxicologie solvants Index. décimale : 667.6 Peintures Résumé : Chemicals are indispensable in many economic activities and are vital part of our everyday life. Howevei chemicals have the potential to cause considerable health and environmental problems from production through to disposal. Owing to their toxicity some ofthe chemicals used in the polymer and paint industry (fillers, plasticizers, stabilizers, colorants and pigments) have been banned So it is important to first understand their toxicity (their effects on humans and/or environment) and then replace these chemicals with elther non-toxic or less toxic chemicals. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9829 [article]

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Biobased reactive diluent for UV-curable urethane acrylate oligomers for wood coatings / Dipak S. Tathe in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 1 (01/2015)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 1 (01/2015) . - p. 187-196 Titre : Biobased reactive diluent for UV-curable urethane acrylate oligomers for wood coatings Type de document : texte imprimé Auteurs : Dipak S. Tathe, Auteur ; Ramanand N. Jagtap, Auteur Année de publication : 2015 Article en page(s) : p. 187-196 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biomatériaux Bois -- Revêtements Chloroformiate d'allyle Copolymère uréthane acrylate Diluants Huile de ricin et constituants Oligomères Photoamorceurs (chimie) Revêtements -- Séchage sous rayonnement ultraviolet Index. décimale : 667.9 Revêtements et enduits Résumé : Castor oil (CO)-based reactive diluent for UV-curable urethane acrylate oligomers was synthesized by the reaction of a CO with diethanolamine and the resultant product was subsequently reacted with allyl chloroformate. The reactive diluent was characterized by FTIR and 1H NMR techniques. This reactive diluent was incorporated in a urethane acrylate oligomer and photoinitiator at different weight fractions varying from 5 to 25 wt% for UV curing. The effects of reactive diluent concentrations on the viscosity of the formulations along with mechanical, chemical, and optical properties of UV-curable coatings were studied. Furthermore, the cured films were evaluated for glass transition temperature (T g) determined by differential scanning calorimetry and thermal stability by thermogravimetric analysis. Gel content and water absorption of UV-cured films were evaluated. Note de contenu : - EXPERIMENTAL : Material - Synthesis of diethanol fatty amide of castor oil (FACO) - Synthesis of triallyl format fatty amide (TFFA) - Formulation of UV-curable coating - Characterization - Testing of coatings - RESULTS AND DISCUSSION : Physico-chemical analysis - FTIR analysis of CO, FACO, TFFA and UV-cured polymer - 1HNMR spectra of triallyl formate fatty amide (TFFA) - Effect of reactive diluent concentration on viscosity - Water absorption properties -Differential scanning calorimetry (DSC) - Thermogravimetric analysis of UV-cured films - Gloss of UV-cured coating - Coating properties DOI : 10.1007/s11998-014-9616-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9616-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23217 [article]

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Challenges of controlled radical polymerization (CRP) for commercialization / Y. S. Ahire in PAINTINDIA, Vol. LX, N° 11 (11/2010)

[article]  inPAINTINDIA > Vol. LX, N° 11 (11/2010) . - p. 59-67 Titre : Challenges of controlled radical polymerization (CRP) for commercialization Type de document : texte imprimé Auteurs : Y. S. Ahire, Auteur ; Ramanand N. Jagtap, Auteur Année de publication : 2010 Article en page(s) : p. 59-67 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents dispersants (chimie) Dispersions et suspensions Mouillage (chimie des surfaces) Pigments Polymères Polymérisation radicalaire controlée Tags : 'Polymérisation  réversible  de  transfert  chaîne  fragmentation  d'addition'  RAFT  radicalaire  par  d'atomes  inverse'  RATRP  'Nitroxide  Mediated  Polymerization'  NMP Index. décimale : 667.9 Revêtements et enduits Résumé : Controlled/living radical polymerization (CRP), namely RAFT/MADIX, NMP, ATRP, and reverse ATRP, are among the most rapidly developing areas of chemistry and polymer science. However such extraordinary scientific development of CRP contrasts with the very limited number of commercially available products derived from these technologies. The present review tries to connect the basics of CRP as a tool to develop commercial products and also its commercial status. The overview of patent literature, conference proceedings, research papers and technical data sheets of commercial products. The advantages and disadvantages are given for the different CRP techniques, the CRP processes face many of hurdles (depending on the type of CRP), that must be overcome and reduce the time to market for polymer products compared to mature existing technologies. In spite of its slow development, CRP is seen as a revolutionary method to produce precisely controlled, next generation specialty polymer additives and materials. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10599 [article]

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Coloration of polypropylene with interference pigment and the effect of wetting agents on its optical properties / Ramanand N. Jagtap in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 2, N° 8 (10/2005)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 2, N° 8 (10/2005) . - p. 599-606 Titre : Coloration of polypropylene with interference pigment and the effect of wetting agents on its optical properties Type de document : texte imprimé Auteurs : Ramanand N. Jagtap, Auteur ; K. G Patel, Auteur ; C. K. Nere, Auteur Année de publication : 2005 Article en page(s) : p. 599-606 Note générale : Bibliogr. Langues : Américain (ame) Tags : Propriété  optique  Ether  cyclique  polymère  Oléfine  Etude  expérimentale  Modélisation  Réflexion  Spectrophotométrie  Mesure  Agent  surface  non  ionique  Ethylène  oxyde  Glycol  Dispersant  Pigment  minéral  Couleur  Relation  formulation  propriété  Propène  Coloration Index. décimale : 667.9 Revêtements et enduits Résumé : Coloration of polypropylene with interference pigment with and without dispersing agents, namely propylene glycol and poly (ethylene glycol) were studied. Effect of pigment concentrations and dispersing agents on various color properties of the molded specimens, such as reflectance versus wavelength characteristics, angular dependency, K/S data, and flop index were evaluated using the CIE system with goniospectrophotometer. Surface image analysis was also conducted. Based on the above parameters, design equations were developed. The study revealed that the effective concentration of the interference pigment was 0.5% and better color characteristics were found when poly (ethylene glycol) was used as a dispersing agent. DOI : 10.1007/BF02774589 En ligne : https://link.springer.com/content/pdf/10.1007%2FBF02774589.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3785 [article]

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Heat sensitive paints / M. Roy in PAINTINDIA, N° spécial (02/2002)

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Liquid crystal and liquid crystalline polymer in paints / V. N. Savekar in PAINTINDIA, Vol. XLIX, N° 8 (08/1999)

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Polyvinyl butyral - Excellent material for glass adhesive / Prakash A. Mahanwar in PAINTINDIA, PAINTINDIA (03/1999)

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Powder coatings for non-metallic surfaces / Manikantan. B. Nair in PAINTINDIA, Vol. XLIX, N° 1, Su (01/1999)

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Products of hydrogenolysis of carbohydrates as raw materials for alkyds / Ramanand N. Jagtap in PAINTINDIA, Vol. XLV, N° 11 (11/1995)

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PU-coating performance of bio-based hyperbranched alkyd resin on mild steel and wood substrate / Amardip M. Patil in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)  

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Synthesis and properties of phosphate-based diacrylate reactive diluent applied to UV-curable flame-retardant wood coating / Gunwant P. Lokhande in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 1 (01/2017)  

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Synthesis of electroactive tetraaniline-based acrylic polyol by atom transfer radical polymerization for anticorrosive coating application / Gunawant P. Lokhande in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 6 (11/2018)  

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Universal tinters / M. A. Shenoy in PAINTINDIA, Vol. LI, N° 2 (suppl.) (02/2001)

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UV-curable behavior of phosphorus- and nitrogen-based reactive diluent for epoxy acrylate oligomer used for flame-retardant wood coating / Sachin U. Chambhare in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 4 (07/2016)  

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Water-dispersible polyurethane : An overview / S. A. Nagotkar in PAINTINDIA, Vol. L, N° 3 (suppl (03/2000)

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