99超碰中文字幕在线观看-天天干天天日天天舔婷婷-我看操逼的好看的女人的-日本一二三四五区日韩精品

文獻(xiàn)名： Effect of Incorporating a Diurethane Monomethacrylate Monomer into Acrylic Latexes

 

 

作者： Anisa Cobaj, Yongan Hu, and Mark D. Soucek

School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States

 

摘要：A diurethane monomethacrylate monomer, 3,12-dioxo-2,13-dioxa-4,11-diazapentadecan-15-yl methacrylate (DODODAMA) was synthesized, purified, and incorporated into homogeneous latexes. DODODAMA was copolymerized with methyl methacrylate (MMA) and butyl acrylate (BA) by a seeded emulsion polymerization process. The influence of DODODAMA concentration was evaluated with a constant glass transition temperature (Tg). Tg of the latex was maintained by adjusting the ratio of MMA to BA. The effects of DODODAMA on film formation, viscoelastic properties, mechanical properties, and film morphology were studied. DODODAMA-functionalized latexes exhibited lower minimum film formation temperature and enhanced film formation ability compared to the acrylic latex without DODODAMA. Furthermore, the increase in DODODAMA functionality improved tensile modulus, tensile strength, and hardness of latex films.

 

關(guān)鍵詞：