同时并联活的基质聚合:通过与酒精在位单体转换的梯度共聚物
Kazuhiro Nakatani1, Takaya Terashima, Mitsuo Sawamoto
1Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
Journal of the American Chemical Society
|September 4, 2009
概括
研究人员开发了一种新的单方法,用于创建渐变共聚合物,使用并发的协同活激素聚合. 这种技术有效地在现场转化单体,提供了一种方便的方法来生产先进的聚合物材料.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 有机合成 有机合成
背景情况:
- 与随机或块共聚物相比,渐变共聚物具有独特的特性.
- 现有的合成渐变共聚合物的方法可能是复杂和低效的.
- 在现场的单体转化为简化梯度共聚合物合成提供了一个潜在的途径.
研究的目的:
- 开发一种新,高效,方便的单方法来生产渐变共聚合物.
- 为了利用并发的协同活激素聚合与现场单体转化.
- 探索各种渐变共聚物与不同侧组的合成.
主要方法:
- 同时使用催化剂进行并联活激素聚合.
- 采用金属氧化物 (例如,Al(Oi-Pr) 3) 和酒精溶剂 (ROH) 在现场转化.
- 在聚合过程中,甲基 (甲基) 烯酸 (M(M) A) 单体逐渐转化为基 (甲基) 烯酸 (R(M) A).
主要成果:
- 在聚合物链上成功生产了具有不同单体组成的受良心控制的渐变共聚合物.
- 使用乙醇和Al(Oi-Pr) 证明了甲基甲酸盐 (MMA) 转化为乙基甲酸盐 (EMA) 3.
- 使用不同的酒精合成了各种带有长基链和PEG悬浮群的渐变共聚物.
结论:
- 同时串联活根聚合是一种合成梯度共聚物的有效方法.
- 这种方法为聚合物合成提供了一种方便和高效的单策略.
- 由此产生的渐变共聚物与它们的随机和块对应物相比,具有独特的物理性质.
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