Studies on Novel Synthesis and Phase Transition of Star-Block Copolymers

星形嵌段共聚物的新型合成及相变研究

• 批准号: 03650741
• 负责人: ISHIZU Koji
• 金额: $ 1.28万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650741/
• 关键词: Star-block copolymer; Block macromonomer; Organized-polymerization; Microphase separation; Micelle; Unimolecular micelle; スタ-・ブロック共重合体; ブロックマクロモノマ-

The aim of this project is to study the novel synthesis and microphase separation transition of star-block copolymers. The obtained results are as follows: 1. We have established a novel architecture for AnBn star-block copolymers by means of organized- polymerization of microphase-separated structure formed by diblock macromonomers possessing central polymerizable groups. In this environment, the polymerizable groups at the position of block junction should be oriented regularly at the domain interfaces. 2. We have also established a novel architecture for (AB)n copolymers by means of the organized-polymerization in micelles formed by diblock macromonomers possessing a vinylbenzyl groups at the terminal end. The comb-shaped diblock-graft copolymers were prepared by means of the one-shot reaction between AB type diblock anions and p-chloromethylstyrene. 3. We studied the self-micellarization of (AB)n copolymers as a parameter of arm number (n) from TEM observations. The microphase-separated structures of (AB)n star copolymers (n=15-30) were formed with the dimension of unimolecular micelle in the strong segregation regime.

该项目的目的是研究星形嵌段共聚物的新型合成和微相分离转变。所得结果如下： 1.我们通过具有中心可聚合基团的二嵌段大分子单体形成的微相分离结构的有组织聚合，建立了AnBn星形嵌段共聚物的新型结构。在这种环境下，嵌段连接位置处的可聚合基团应在域界面处规则地取向。 2.我们还通过末端具有乙烯基苄基的二嵌段大分子单体形成的胶束中的有组织聚合，建立了(AB)n共聚物的新颖结构。通过AB型二嵌段阴离子与对氯甲基苯乙烯的一次性反应制备了梳形二嵌段接枝共聚物。 3. 我们通过 TEM 观察研究了 (AB)n 共聚物的自胶束化作为臂数 (n) 的参数。 (AB)n星形共聚物(n=15-30)的微相分离结构是在强偏析状态下以单分子胶束的尺寸形成的。

项目成果

Koji ISHIZU: "Star-Block Copolymers:Organized-Polymerization of Diblock Macromonomers Polymer Plastic Technology and Engineering" Marcel Dekker INC., (1993)

Koji ISHIZU：“星形嵌段共聚物：二嵌段大分子单体的有组织聚合聚合物塑料技术与工程”Marcel Dekker INC.，(1993)

Koji Ishizu: "Organized-Polymerization of Diblock Macromonomers Possessing Central Vinylbenzyl Groups" Polymer Commun.32. 386-389 (1991)

Koji Ishizu：“具有中心乙烯基苄基的二嵌段大分子单体的有组织聚合”Polymer Commun.32。

Koji Ishizu: "Star-Block Copolymers [5]. Anionic and Organized Radical Polymerizations of Diblock Macromonomers" Polym. Prepr. Jpn.40. 1683 (1991)

Koji Ishizu：“星形嵌段共聚物 [5]。二嵌段大分子单体的阴离子和有组织自由基聚合”

Koji Ishizu: Marcel Dekker INC. Polymer Plastic Technology and Engineering. Star-Block Copolymers: Organized-Polymerization of Diblock Macromonomers,

Koji Ishizu：Marcel Dekker INC. 聚合物塑料技术与工程。

Koji Ishizu: "Synthesis of Poly(styreneーblockーtーbutylmethacrylate)Diblock Macromonomers Possessing Central Vinylbenzyl Groups" Polymer. 33. (1992)

Koji Ishizu：“具有中心乙烯基苄基的聚（苯乙烯-嵌段-叔丁基甲基丙烯酸酯）二嵌段大分子单体的合成”聚合物 33。（1992）