利用原位红外跟踪技术和光-示差扫描量热技术研究了不同类型多官能巯基化合物与乙烯基硅氮烷的紫外光聚合动力学过程.结果表明,巯基化合物官能度越高,聚合反应速率越高,但最终转化率越低.巯基丙酸酯类化合物比烷基硫醇类化合物更易与乙烯基硅氮烷反应.在较低温度下,反应温度对聚合反应的影响较弱,反应活化能约为2.3kJ/mol,而较高反应温度下反应速率偏离Arrhenius方程.
参考文献
| [1] | Ewa Andrzejewska .Photopolymerization kinetics of multifunctional monomers[J].Progress in Polymer Science,2001(4):605-665. |
| [2] | Boey F.;Rath SK.;Ng AK.;Abadie MJM. .Cationic UV cure kinetics for multifunctional epoxies[J].Journal of Applied Polymer Science,2002(2):518-525. |
| [3] | Cho JD;Hong JW .UV-initiated free radical and cationic photopolymerizations of acrylate/ep oxide and acrylate/vinyl ether hybrid systems with and without photosensitizer[J].Journal of Applied Polymer Science,2004(3):1473-1483. |
| [4] | Hoyle CE;Lee TY;Roper T .Thiol-enes: Chemistry of the past with promise for the future[J].Journal of Polymer Science, Part A. Polymer Chemistry,2004(21):5301-5338. |
| [5] | Neil B.Cramer .Kinetics of thiol-ene and thiol-acrylate photopolymerizations with real-time fourier transform infrared[J].Journal of Polymer Science, Part A. Polymer Chemistry,2001(19):3311-3319. |
| [6] | 荣国斌.波谱数据表--有机化合物的结构解析[M].上海:华东理工大学出版社,2002:250-280. |
| [7] | 魏焕郁,施文芳,聂康明,章于川.树枝状醚酰胺多官能团（甲基）丙烯酸酯低聚物的合成及其紫外光固化性能的研究[J].高等学校化学学报,2001(09):1605-1609. |
| [8] | Timothy F.Scott;Wayne D.Cook;John S.Forsythe .Photo-DSC cure kinetics of vinyl ester resins. I. Influence of temperature[J].Polymer: The International Journal for the Science and Technology of Polymers,2002(22):5839-5845. |
| [9] | Scherzer T.;Decker U. .The effect of temperature on the kinetics of diacrylate photopolymerizations studied by real-time FTIR spectroscopy[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(21):7681-7690. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%