需要金幣： 1000 個(gè)金幣 |
資料包括：完整論文 |  |
 |
| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：9452 |  | |
| 折扣與優(yōu)惠：團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:本課題采用 Suzuki偶合反應(yīng), 以2, 7-雙（4, 4, 5, 5-四甲基-1, 3, 2-二氧雜硼烷-二基）-9，9-二辛基芴和4,4”-二溴-4”-甲基三苯胺為單體合成了芴三苯胺的共聚物, 以不同配比的2, 7-雙（4, 4, 5, 5-四甲基-1, 3, 2-二氧雜硼烷-二基）-9，9-二辛基芴，4,4’-二溴-4”-甲基三苯胺和4,7-二溴-2,1,3-苯并噻二唑合成了一個(gè)系列的D-π-A型的共聚物。對(duì)合成的共聚物分別進(jìn)行了核磁(1H-NMR)測(cè)試、凝膠滲透色譜儀(GPC)測(cè)試、紫外光譜(UV)測(cè)試、差示掃描量熱法（DSC）測(cè)試、循環(huán)伏安曲線(CV)測(cè)試 、 熱重分析儀(TGA)測(cè)試。發(fā)現(xiàn)成功合成了芴三苯胺共聚物和D-π-A型的共聚物，并且分子量在11800-20000之間。D-π-A型的聚合物隨著三苯胺含量的增加及苯并噻二唑含量的減少，聚合物的共軛長(zhǎng)度變長(zhǎng)，最大吸收峰波長(zhǎng)逐漸紅移。D-π-A型的共聚物的光學(xué)帶隙比芴三苯胺共聚物小。三苯胺和苯并噻二唑的比例的改變，對(duì)HOMO能級(jí)和LUMO能級(jí)的影響不大。三苯胺，芴，苯并噻二唑配比為0.8:1:0.2的D-π-A型的共聚物玻璃化轉(zhuǎn)變溫度為111°C。D-π-A型的聚合物的10%的熱失重溫度比芴三苯胺的共聚物大，聚合物的最大失重速率溫度都在445°C左右，苯并噻二唑的加入對(duì)最大失重速率溫度幾乎沒(méi)有影響。探索了聚合物在太陽(yáng)能電池上的應(yīng)用。 關(guān)鍵詞：D-π-A型聚合物，芴三苯胺共聚物，太陽(yáng)能電池
Abstract:Fluorene-triphenylamine based copolymer was synthesized by using 2,7-di (4,4,5,5- tetramethyl-1,3,2-dioxoborane-diyl)-9,9-diotylfluorene and 4,4’-dibromo-4”-methyl triphenylamine as monomers through Suzuki coupling . A series of D-π-A type copolymers were prepared by different proportions of 4,4’-dibromo-4”-methyl triphenylamine to 4,7-dibromo-2,1,3-benzothiadiazole as monomers through Suzuki coupling . The resulting copolymers were characterized and analyzed by proton nuclear magnetic resonance (1H-NMR) , gel permeation chromatography(GPC) , UV-Vis spectrophotometer(UV),cyclic voltammetry (CV) , differential scanning calorimetry (DSC) and thermo-gravimetric analyzer(TGA) . It was found that fluorene-triphenylamine based copolymer and the series of D-π-A type copolymers were prepared successfully. Their number average molecular weights were between 11800 and 19500 . With the increase of the amount of triphenylamine and the decrease of the amount of benzothiadiazole ,the conjugation length of the polymers were longer , the wave length of the maximum absorption peaks of D-π-A type copolymers occurred apparent red shift . It was found that optical band gaps of D-π-A type copolymers were more narrow than that of fluorine-triphenylamine based copolymer. The proportions of triphenylamine to benzothiadiazole had little effect on HOMO and LUMO. It was found that (TPA)0.5-PF8-(BT)0.5 polymer’s glass transition temperature was 111°C.10% weight loss temperature of the D-π-A polymers was larger than fluorine-triphenylamine based copolymer. The maximum weight loss rate temperature was around 445°C,the adding of benzothiadizole had few effect on the maximum weight loss rate temperature.We explored the application of polymer in solar cell. Keywords：D-π-A type copolymers , fluorene –triphenylamine based copolymer , solar cel
|
