| 一步法制备聚二甲基硅氧烷大分子偶氮引发剂及其用于嵌段共聚物的合成 |
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| 引用本文： | 冯利邦,方红霞,周树学,顾广新,武利民. 一步法制备聚二甲基硅氧烷大分子偶氮引发剂及其用于嵌段共聚物的合成[J]. 高分子学报, 2007, 0(5): 472-477 |
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| 作者姓名： | 冯利邦 方红霞 周树学 顾广新 武利民 |
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| 作者单位： | 复旦大学材料系,教育部先进涂料工程研究中心,上海,200433;复旦大学材料系,教育部先进涂料工程研究中心,上海,200433;复旦大学材料系,教育部先进涂料工程研究中心,上海,200433;复旦大学材料系,教育部先进涂料工程研究中心,上海,200433;复旦大学材料系,教育部先进涂料工程研究中心,上海,200433 |
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| 摘 要： | 提出了一种简单易行的合成聚二甲基硅氧烷大分子偶氮引发剂的方法.通过羟基封端的聚二甲基硅氧烷(HO-PDMS-OH)与4,4′-偶氮-二(4-氰基戊酸)(ACPA)在十分温和的条件下直接进行一步缩聚反应,合成了含有PDMS链段的大分子偶氮引发剂.用这种大分子引发剂来引发聚(乙二醇)甲醚甲基丙烯酸酯大分子单体(PEGMA)进行自由基溶液聚合,得到了一系列两亲性梳状嵌段共聚物(PDMS-PEG).
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| 关 键 词： | 大分子引发剂 聚二甲基硅氧烷 缩聚 嵌段共聚物 |
| 收稿时间： | 2006-05-15 |
| 修稿时间： | 2006-07-01 |
SYNTHESIS OF PDMS-CONTAINING MACROAZOINITIATOR BY ONE STEP METHOD AND ITS APPLICATION IN PREPARATION OF BLOCK COPOLYMERS |
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| FENG Libang,FANG Hongxia,ZHOU Shuxue,GU Guangxin,WU Limin. SYNTHESIS OF PDMS-CONTAINING MACROAZOINITIATOR BY ONE STEP METHOD AND ITS APPLICATION IN PREPARATION OF BLOCK COPOLYMERS[J]. Acta Polymerica Sinica, 2007, 0(5): 472-477 |
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| Authors: | FENG Libang FANG Hongxia ZHOU Shuxue GU Guangxin WU Limin |
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| Affiliation: | Department of Materials Science, The Advanced Coatings Research Center of China Educational Ministry, Fudan University, Shanghai 200433 |
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| Abstract: | A one step metohd approach for synthesis of polydimethylsiloxane(PDMS)-containing macroazoinitiator(MAI)was developed by direct polycondensation of hydroxyalkyl-terminated PDMS with 4,4'-azobis-4-cyanopentanoic acid(ACPA)under mild conditions by the use of dicyclohexylcarbodiimide(DCC)as the activating agent and 4-(dimethylamino)pyridinium-p-toluenesulfonate(DPTS)as the catalyst.The resulted MAI was then used as an initiator for polymerization of poly(ethylene glycol)methyl ether methacrylate(PEGMA)macro-monomers,and amphiphilic PDMS-PEG block copolymers were successfully synthesized.Results from the characterization of block copolymers showed that the resulted MAI had very high initiation efficiency and the block copolymers had microphase-separated structure. |
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| Keywords: | Macroazoinitiator(MAI) Polydimethylsiloxane(PDMS) Polycondensation Block copolymers |
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