Synthesis and properties of aqueous cyclic carbonate dispersion and non-isocyanate polyurethanes under atmospheric pressure
作者： Zhijun Wu , Liuyan Tang , Jingtao Dai , Jinqing Qu
DOI: 10.1016/J.PORGCOAT.2019.105209
关键词:
摘要: Abstract Cyclic carbonates (TMC/PMDC/BTDC) were synthesized at atmospheric pressure by glycerine carbonate (GC) reacting with trimellitic anhydride (TMA) / pyromellitic (PMDA) benzophenone-3,3′,4,4′-tetracarboxylicdianhydride (BTDA). 1H NMR spectra showed that the cyclic have 2.62, 3.72 and 3.43 functionality, respectively. TMC/PMDC/BTDC further neutralized dimethylethanolamine dispersed in water to prepare aqueous dispersion. They exhibited no stratification after 5000 r/min centrifugation for 60 min, indicating their good stability. The particle sizes of these dispersions ranged from 30 120 nm Zeta potential -55 -79.5 mV. A series waterborne non-isocyanate polyurethane (T-WNIPU, P-WNIPU B-WNIPU) coatings successfully prepared dispersion diamines. WNIPU all displayed excellent chemical resistance toluene, xylene, alcohol 5% H2SO4 as well high gloss, impact resistance, adhesion, flexibility hardness. Tg WNIPUs was range 31.4 °C–100.2 °C. All thermal stability weight loss temperatures (T5%) above 242 °C.
sci-hub.se 参考文章(41)
OL Figovsky, L Shapovalov, O Axenov, Advanced coatings based upon non-isocyanate polyurethanes for industrial applications Surface Coatings International Part B-coatings Transactions. ,vol. 87, pp. 83- 90 ,(2004) , 10.1007/BF02699601
Guifeng Liu, Guomin Wu, Jian Chen, Shuping Huo, Can Jin, Zhenwu Kong, Synthesis and properties of POSS-containing gallic acid-based non-isocyanate polyurethanes coatings Polymer Degradation and Stability. ,vol. 121, pp. 247- 252 ,(2015) , 10.1016/J.POLYMDEGRADSTAB.2015.09.013
Rohit Pathak, Mukesh Kathalewar, Kunal Wazarkar, Anagha Sabnis, Non-isocyanate polyurethane (NIPU) from tris-2-hydroxy ethyl isocyanurate modified fatty acid for coating applications Progress in Organic Coatings. ,vol. 89, pp. 160- 169 ,(2015) , 10.1016/J.PORGCOAT.2015.08.015
Janusz Datta, Marcin Włoch, Progress in non-isocyanate polyurethanes synthesized from cyclic carbonate intermediates and di- or polyamines in the context of structure–properties relationship and from an environmental point of view Polymer Bulletin. ,vol. 73, pp. 1459- 1496 ,(2016) , 10.1007/S00289-015-1546-6
Adam V Wisnewski, Meredith H Stowe, André Cartier, Qing Liu, Jian Liu, Liang Chen, Carrie A Redlich, None, Isocyanate vapor-induced antigenicity of human albumin. The Journal of Allergy and Clinical Immunology. ,vol. 113, pp. 1178- 1184 ,(2004) , 10.1016/J.JACI.2004.03.009
M. Blain, L. Jean-Gérard, R. Auvergne, D. Benazet, S. Caillol, B. Andrioletti, Rational investigations in the ring opening of cyclic carbonates by amines Green Chem.. ,vol. 16, pp. 4286- 4291 ,(2014) , 10.1039/C4GC01032A
Yanfang Zhu, Jinping Xiong, Yuming Tang, Yu Zuo, EIS study on failure process of two polyurethane composite coatings Progress in Organic Coatings. ,vol. 69, pp. 7- 11 ,(2010) , 10.1016/J.PORGCOAT.2010.04.017
Robert M. Burk, Michael B. Roof, A safe and efficient method for conversion of 1,2- and 1,3-diols to cyclic carbonates utilizing triphosgene Tetrahedron Letters. ,vol. 34, pp. 395- 398 ,(1993) , 10.1016/0040-4039(93)85085-B
Erica Scrinzi, Stefano Rossi, Flavio Deflorian, Caterina Zanella, Evaluation of aesthetic durability of waterborne polyurethane coatings applied on wood for interior applications Progress in Organic Coatings. ,vol. 72, pp. 81- 87 ,(2011) , 10.1016/J.PORGCOAT.2011.03.013
Mukesh S. Kathalewar, Padmanabh B. Joshi, Anagha S. Sabnis, Vinod C. Malshe, Non-isocyanate polyurethanes: from chemistry to applications RSC Advances. ,vol. 3, pp. 4110- 4129 ,(2013) , 10.1039/C2RA21938G