当前位置：
X-MOL 学术
›
Macromolecules
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Quantitative and Ultrafast Synthesis of Well-Defined Star-Shaped Poly(p-methoxystyrene) via One-Pot Living Cationic Polymerization
Macromolecules ( IF 5.1 ) Pub Date : 2015-12-14 00:00:00 , DOI: 10.1021/acs.macromol.5b02223 Tomoya Yoshizaki 1 , Arihiro Kanazawa 1 , Shokyoku Kanaoka 1 , Sadahito Aoshima 1
Macromolecules ( IF 5.1 ) Pub Date : 2015-12-14 00:00:00 , DOI: 10.1021/acs.macromol.5b02223 Tomoya Yoshizaki 1 , Arihiro Kanazawa 1 , Shokyoku Kanaoka 1 , Sadahito Aoshima 1
Affiliation
|
Exceptionally fast and quantitative synthesis of star-shaped poly(p-methoxystyrene) [poly(pMOS)] with a well-defined structure was achieved using the one-pot “arm-first” polymer-linking method through base-assisting living cationic polymerization. Star polymers with low polydispersity (Mw/Mn ∼ 1.3) were obtained in a short period of time (homopolymerization time ≤ 0.5 min, polymer-linking time ≤ 3 min) by the reaction of living poly(pMOS) (DP = 48–285) with an analogous divinyl compound using EtAlCl2/SnCl4 dual catalysts in CH2Cl2 in the presence of ethyl acetate. The structure of the divinyl compounds and the reaction conditions used for the linking reactions are key to the highly controlled quantitative synthesis. The effect of the arm-chain length of the star-shaped polymer on their thermal properties, evaluated by differential scanning calorimetry, differed from that of the linear polymers. The morphology of the individual star-shaped polymers was also investigated using atomic force microscopy.
中文翻译：
一锅活性阳离子聚合定量快速合成定义良好的星形聚对甲氧基苯乙烯
通过一锅法“臂先”聚合物键合法，通过碱辅助活性阳离子聚合，可以快速，定量地合成结构明确的星形聚对甲氧基苯乙烯[poly（pMOS）] 。具有低多分散性（星形聚合物中号瓦特/中号Ñ在短时间内获得〜1.3）（均聚时间≤0.5分钟，聚合物联时间≤3分钟）通过活性聚（PMOS）的反应（DP = 48 –285）和类似的二乙烯基化合物，使用EtAlCl 2 / SnCl 4双重催化剂在CH 2 Cl 2中在乙酸乙酯存在下。二乙烯基化合物的结构和用于连接反应的反应条件是高度受控的定量合成的关键。通过差示扫描量热法评估，星形聚合物的臂链长度对其热性能的影响不同于线性聚合物。还使用原子力显微镜研究了单个星形聚合物的形态。
更新日期：2015-12-14
中文翻译：
一锅活性阳离子聚合定量快速合成定义良好的星形聚对甲氧基苯乙烯
通过一锅法“臂先”聚合物键合法，通过碱辅助活性阳离子聚合，可以快速，定量地合成结构明确的星形聚对甲氧基苯乙烯[poly（pMOS）] 。具有低多分散性（星形聚合物中号瓦特/中号Ñ在短时间内获得〜1.3）（均聚时间≤0.5分钟，聚合物联时间≤3分钟）通过活性聚（PMOS）的反应（DP = 48 –285）和类似的二乙烯基化合物，使用EtAlCl 2 / SnCl 4双重催化剂在CH 2 Cl 2中在乙酸乙酯存在下。二乙烯基化合物的结构和用于连接反应的反应条件是高度受控的定量合成的关键。通过差示扫描量热法评估，星形聚合物的臂链长度对其热性能的影响不同于线性聚合物。还使用原子力显微镜研究了单个星形聚合物的形态。
京公网安备 11010802027423号