Terminal Defined Chain-Growth Polycondensation of 4-Chloropyridine
Terminal Defined Chain-Growth Polycondensation of 4-Chloropyridine
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4-氯吡啶的末端链增长缩聚
DOI：
10.1016/j.polymer.2014.05.052
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发表时间：
2014
期刊：
影响因子：
4.6
通讯作者：
T. Sanji
中科院分区：
文献类型：
--
作者：
K. Nose. T. Iyoda;T. Sanji
本研究使用anN-（4-叔丁基苄基）-4-氯吡啶（BPymCl）引发剂和离子交换试剂NaBPh4、NaBF4和TBABF4进行了4-氯吡啶衍生物的缩聚。1h NMR谱表明产物的数量与单体和引发剂的总转化率成正比。MALDI-TOF质谱分析表明产物含有9个以上的单体单元。通过二甲氨基吡啶的加入，聚合得到了很好的终止。这些结果表明缩聚过程是以链式生长方式进行的。这种缩聚反应可能是具有明确的端基的可控聚合反应的一个新例子。
This work examines the polycondensation of 4-chloropyridine derivatives using anN-(4-tert-butylbenzyl)-4-chloropyridinium (BPymCl) initiator and ion exchange reagents NaBPh4, NaBF4, and TBABF4. The1H NMR spectra demonstrate that the product quantity is proportional to the total conversion of the monomer and the initiator. The MALDI-TOF MS spectrum shows that the product contains more than 9 monomer units. The polymerization was well-terminated via the addition of dimethylaminopyridine. These results indicate that the polycondensation proceeds in a chain-growth manner. This polycondensation could be a new example of a controlled polymerization with a well-defined end group.