Development of Synthetic Method on Sequence-Ordered Polymers with Controlled Molecular Weights

可控分子量有序聚合物合成方法的进展

• 批准号: 11650915
• 负责人: KAMEYAMA Atsushi
• 金额: $ 2.05万
• 依托单位: Kanagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650915/
• 关键词: Sequence-Ordered Polymer; Alternating Copolymerization; Transformation of Polymer Backbone; Oxiranes; Insertion Reaction; Molecular Weight; 挿入反応; 配列順序; 分子量; 分子量分布

1) Synthesis of Polyesters with Controlled Molecular WeightA ring-opening polymerization of trifluoropropyrene oxide (TFPO) and phthalic anhydride (PHA) was carried out in toluene using quaternary onium salts and crown ether complexes. The reaction using tetrabutylammonium bromide (TBAB) or tetrabutylammonium acetate (TBAAc) provided the polymer in 75% yield. In the case of the reaction using TBAAc, the molecular weight and polydispersity of the obtained polymer (P-1) was 6400 and 1.10, respectively. It was proved that the polymerization has a living nature.2) Synthesis of Sequence-Ordered Polyesters Using the Insertion of oxiranes into P-1The synthesis of sequence-ordered polyesters with controlled molecular weight using the insertion of oxiranes into P-1 with quaternary onium salts as catalysts was investigated. The reaction of 300-mol% of glycidyl phenyl ether (GPE) into P-1 using tetraamylammonium bromide proceeded with 100% of conversion to provide sequence-ordered polymers with A-C-B unit.It was found that the living ring-opening copolymerization of oxiranes with dicarboxylic anhydrides using suitable quaternary onium salts as initiators provides the corresponding polyesters with controlled molecular weight and molecular weight distribution. The transformation of the obtained polyesters using insertion of GPE is a useful synthetic method to prepare sequence-ordered polymers with A-C-B unit.

1）使用Quaternary onium onium Salts和Crown Ether Complectes在甲苯中在甲苯中进行了三氟丙烯（TFPO）（TFPO）和邻苯二甲胺酸酐（PHA）的聚酯合成。使用四丁基铵溴化物（TBAB）或乙酸四丁胺（TBAAC）的反应可提供75％的产率。在使用TBAAC反应的情况下，所获得的聚合物（P-1）的分子量和多分散性分别为6400和1.10。 2）使用将氧酸插入P-1中的序列测定的多种植者的合成，并研究了序列级别的分子量的序列序列多酯的合成，该序列有序的多植物使用催化剂将oxiranes插入P-1中的分子量，并研究了催化剂作为催化剂。使用四氨基氨基溴二氨基苯基苯基苯基（GPE）在P-1中的反应，使用溴化四氨基铵进行了100％的转化，以提供序列排序的聚合物具有A-C-B单位。分子量和分子量分布。使用GPE插入获得的聚酯转换是一种有用的合成方法，可以用A-C-B单位制备序列排序的聚合物。