文章信息/Info

Title:

Donor-Acceptor Copolymers Containing Phthalazinone Structure Synthesized by Ullmann Polymerization

作者:

韓建華1; 劉程1; 蹇錫高1; 2;  王錦艷1; 2

 1.大連理工大學高分子材料系，遼寧 大連 116024
2. 大連理工大學精細化工國家重點實驗室, 遼寧 大連 116024

Author(s):

Han Jianhua1;  Liu Cheng1;  Jian Xigao1; 2;  Wang Jinyan1; 2

(1. Polymer Science & Materials, Chemical Engineering College, Dalian University of
Technology, Dalian, 116024, China.
2. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian,
116024, China) 

關鍵詞:

二氮雜萘酮; 噻吩; Ullmann縮聚

DOI:

10.7502/j.issn.1674-3962.2015.12.06

文獻標志碼:

A

摘要:

廉價Cu催化的Ullmann縮聚是一種用于合成聚芳醚經典聚合方法。在過去幾十年的研究中，由于Ullmann反應對單體本身的活性具有很大的依賴性，所以聚合用單體局限在缺電子結構的雙鹵單體范圍內。作者研究團隊，在強堿Cs2CO3的催化效果下，成功的實現了二氮雜萘酮受體和噻吩強給體結構之間的聚合。對合成的聚合物進行了凝膠滲透色譜（GPC）和氫核磁共振（1H-NMR）的結構表征。在氮氣中質量損失5%時的溫度均高于382 ℃，800℃ 殘炭率在63 %以上。表明所得聚合物具有優異的熱穩定性。滿足光學器件對熱性能的使用要求。同時, 通過改變主鏈之中噻吩的含量來控制受體和給體之間的相互作用，成功得對聚合物的最大發射波長和發光顏色實現了調控。上述工作對于擴展聚芳醚合成方法和開發新類型的聚芳醚產品具有重要的研究價值。并且基于Ullmann縮合聚合的特點，可以擴大含二氮雜萘酮結構的聚合物種類。對于開發新型功能化的聚合物具有指導意義。

Abstract:

There has been a great deal of recent effort centered on low-cost copper catalyst Ullmann polycondensation. In the past decade, the monomers used in Ullmann polycondensation are mostly electron-deficient di-halogenated compounds. The molecular weight are highly depends on the reaction activities of monomers. In this research, the polymerizations are successfully proceed between the electron-deficient phthalazinone structure and strong electron donating thiophene structure. The obtained copolymers are fully characterized by GPC and 1H-NMR. Their 5% weigh loss temperatures are higher than 382 ℃. The char yield of the investigated polymers in the nitrogen atmosphere is in the range of 63~76% at 800 ℃, confirming their excellent thermal stability and meeting the demand of the optical device for thermal performance. Also, the wavelength of the luminescence can be controlled by changing the content of thiophene structures in the polymer backbones. Furthermore, our research could enrich and diversify the typical polyarylether family containing phthalazinone structure. And it is of great guiding significance for developing the novel functional polymers based on Ullmann Polymerization.