Zou, Wenwu et al. published their research in Youji Huaxue in 2013 | CAS: 1190-39-2

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Category: esters-buliding-blocks

Synthesis of new donor-acceptor copolymer and its application in organic bulk hetero-junction solar cells was written by Zou, Wenwu;Liu, Ying;Jia, Qingming;Ge, Ziyi. And the article was included in Youji Huaxue in 2013.Category: esters-buliding-blocks This article mentions the following:

Alternative copolymer (PBDTDT) was synthesized from acceptor unit with strong electro-withdrawing structure of di-Bu malonate in branch chain and donor unit based on benzo[1,2-b:4,5-b’]dithiophene. And its thermal, optical, electrochem. properties and photovoltaic properties blending with [6,6]-phenyl-C71 butyric acid Me ester as the active layer in the bulk hetero-junction devices of organic solar cells were investigated. The influence of different ratio of polymer PBDTDT and PC71BM on the photovoltaic properties was also studied. And the open voltage reached 0.82 V, when the weight ratio of PBDTDT and PC71BM is 1 3, and its power conversion efficiency (PCE) was 0.90%, with Voc of 0.82 V, Jsc of 3.25 mA/cm2 and FF of 33.8%. Comparing with the poly(3-hexylthiophene) (P3HT) in the same method, the solar cells with P3HT blending with PC71BM as the active layer can only get 0.55 V, which can be lower about 0.29 V than that of the PBDTDT. And the possible factors resulting in low PCE and the higher open voltage than that of P3HT were analyzed. In the experiment, the researchers used many compounds, for example, malonic acid dibutyl ester (cas: 1190-39-2Category: esters-buliding-blocks).

malonic acid dibutyl ester (cas: 1190-39-2) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Category: esters-buliding-blocks

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics