Strategies for improving graft degree of urethane derivative of 2-hydroxymethyl methacrylate grafted onto LDPE
作者： Shenglong Ding , Mingzhu Liu
DOI: 10.1002/PEN.21280
关键词: Low-density polyethylene 、 Grafting 、 Monomer 、 Methacrylate 、 Ethylene-vinyl acetate 、 Hydroxymethyl 、 Polymer chemistry 、 Copolymer 、 Dispersant 、 Materials science 、 Chemical engineering
摘要: A novel monomer, 2-methyl-acrylic acid 2-(3-isocyanato-2-methyl-phenyl carbamoyloxy)-ethyl ester (HT), was synthesized by the reaction of 2-hydroxymethyl methacrylate with toluene diisocyanate. The influences solvents, temperature and catalyst, dibutyl tin dilaurate on total yield HT were investigated theoptimum synthesis conditions obtained. obtained monomer then used to modify low density polyethylene (LDPE) in Haake Rheomix 600P via melt grafting copolymerization. modified LDPE characterized Fourier transform infrared. During process, single-step two-step procedures compared results showed that procedure more favorable. In a procedure, melting temperatures, amount, ethylene vinyl acetate copolymer (EVA, Mn = 800–1200) graft degree also investigated. investigation confirmed EVA acting as dispersant could enhance dispersion improve significantly, net value increased about 1.5%. better matrix scanning electron microscope after adding system. POLYM. ENG. SCI., 2009. © 2009 Society Plastics Engineers
sci-hub.se 参考文章(28)
Susana B. Grassino, Miriam C. Strumia, Joel Couve, Marc J.M. Abadie, Photoactive films obtained from methacrylo-urethanes tannic acid-based with potential usage as coating materials : analytic and kinetic studies Progress in Organic Coatings. ,vol. 37, pp. 39- 48 ,(1999) , 10.1016/S0300-9440(99)00050-8
D.P Serrano, J Aguado, J.M Escola, J.M Rodrı́guez, L Morselli, R Orsi, Thermal and catalytic cracking of a LDPE–EVA copolymer mixture Journal of Analytical and Applied Pyrolysis. ,vol. 68, pp. 481- 494 ,(2003) , 10.1016/S0165-2370(03)00037-8
Shenglong Ding, Mingzhu Liu, The Effect of Feed Composition of Styrene and Acrylic Acid on the Properties of Modified Low Density Polyethylene Macromolecular Symposia. ,vol. 257, pp. 162- 170 ,(2007) , 10.1002/MASY.200751116
Tadashi Sakai, Yoko Morita, Jaehoon Roh, Hyoungryoul Kim, Yangho Kim, Improvement in the GC-MS method for determining urinary toluene-diamine and its application to the biological monitoring of workers exposed to toluene-diisocyanate. International Archives of Occupational and Environmental Health. ,vol. 78, pp. 459- 466 ,(2005) , 10.1007/S00420-004-0571-9
Yılser Güldoğan, Sinan Eğri, Zakir MO Rzaev, Erhan Pişkin, None, Comparison of maleic anhydride grafting onto powder and granular polypropylene in the melt by reactive extrusion Journal of Applied Polymer Science. ,vol. 92, pp. 3675- 3684 ,(2004) , 10.1002/APP.20304
S. Ajithkumar, S.S. Kansara, N.K. Patel, Kinetics of castor oil based polyol–toluene diisocyanate reactions European Polymer Journal. ,vol. 34, pp. 1273- 1276 ,(1998) , 10.1016/S0014-3057(97)00270-X
Wenfeng Li, Guozheng Liang, Wenli Xin, Triazine reaction of cyanate ester resin systems catalyzed by organic tin compound: kinetics and mechanism Polymer International. ,vol. 53, pp. 869- 876 ,(2004) , 10.1002/PI.1446
Leonid Mashlyakovskiy, Vladimir Zaiviy, Giovanni Simeone, Claudio Tonelli, Fluoropolyethers end-capped by polar functional groups. I. Kinetic approach to the reaction of hydroxy-terminated fluoropolyethers with cycloalyphatic and aromatic diisocyanates Journal of Polymer Science Part A. ,vol. 37, pp. 557- 570 ,(1999) , 10.1002/(SICI)1099-0518(19990301)37:5<557::AID-POLA6>3.0.CO;2-I
Qian Wei, Donatella Chionna, Elena Galoppini, Mariano Pracella, Functionalization of LDPE by Melt Grafting with Glycidyl Methacrylate and Reactive Blending with Polyamide‐6 Macromolecular Chemistry and Physics. ,vol. 204, pp. 1123- 1133 ,(2003) , 10.1002/MACP.200390081
Guo-Hua Hu, Huxi Li, Lian-Fang Feng, Luiz Antonio Pessan, Strategies for maximizing free‐radical grafting reaction yields Journal of Applied Polymer Science. ,vol. 88, pp. 1799- 1807 ,(2003) , 10.1002/APP.11850