scholarly journals Donor−Acceptor Diblock Copolymers Based on PPV and C60:  Synthesis, Thermal Properties, and Morphology

2004 ◽  
Vol 37 (10) ◽  
pp. 3673-3684 ◽  
Author(s):  
Marleen H. van der Veen ◽  
Bert de Boer ◽  
Ulf Stalmach ◽  
Karin I. van de Wetering ◽  
Georges Hadziioannou
Keyword(s):  
Thermal Properties ◽  
Diblock Copolymers ◽  
Donor Acceptor

Crystallization behavior, structure, morphology, and thermal properties of crystalline and amorphous stereo diblock copolymers, poly(l-lactide)-b-poly(dl-lactide)

2020 ◽  
Vol 11 (36) ◽  
pp. 5711-5724 ◽  
Author(s):  
Hideto Tsuji ◽  
Kazumasa Iguchi ◽  
Kohji Tashiro ◽  
Yuki Arakawa
Keyword(s):  
Thermal Properties ◽  
Crystallization Behavior ◽  
Diblock Copolymers ◽  
Structure Morphology

Some fractions of poly(dl-lactide) chains were confined in the amorphous regions between the crystalline regions, but the remaining parts of the poly(dl-lactide) chains should have been located outside of the alternately layered crystalline and amorphous regions.

Diblock Copolymers Based on 1,4-Dioxan-2-one andɛ-Caprolactone: Characterization and Thermal Properties

2004 ◽  
Vol 205 (13) ◽  
pp. 1764-1773 ◽  
Author(s):  
Jean-Marie Raquez ◽  
Philippe Degée ◽  
Ramani Narayan ◽  
Philippe Dubois
Keyword(s):  
Thermal Properties ◽  
Diblock Copolymers

Energy-transfer studies of donor-acceptor-labeled polystyrene-block-poly(methyl methacrylate) diblock copolymers in solution

1992 ◽  
Vol 25 (1) ◽  
pp. 496-498 ◽  
Author(s):  
Shaoru Ni ◽  
Didier Juhue ◽  
Jim Moselhy ◽  
Yongcai Wang ◽  
Mitchell A. Winnik
Keyword(s):  
Energy Transfer ◽  
Methyl Methacrylate ◽  
Diblock Copolymers ◽  
Poly Methyl Methacrylate ◽  
Donor Acceptor

scholarly journals A-π-D-π-A-Based Small Molecules for OTFTs Containing Diketopyrrolopyrrole as Acceptor Units

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 817
Author(s):  
Baji Shaik ◽  
Mujeeb Khan ◽  
Mohammed Rafi Shaik ◽  
Mohammed A.F. Sharaf ◽  
Doumbia Sekou ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermal Properties ◽  
Small Molecules ◽  
Thin Film Transistor ◽  
Hole Mobility ◽  
Organic Thin Film ◽  
Organic Thin Film Transistor ◽  
Cast Films ◽  
Donor Acceptor ◽  
P Type

A-π-D-π-A-based small molecules 6,6′-((thiophene-2,5-diylbis(ethyne-2,1-diyl))bis(thiophene-5,2-diyl))bis(2,5-bis(2-ethylhexyl)-3-(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione) (TDPP-T) and 6,6′-(((2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-diyl)bis(ethyne-2,1-diyl))bis(thiophene-5,2-diyl))bis(2,5-bis(2-ethylhexyl)-3-(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione) (TDPP-EDOT) have been designed and synthesized. The diketopyrrolopyrrole acts as an electron acceptor, while the thiophene or 3,4-ethylenedioxythiophene acts as an electron donor. The donor–acceptor groups are connected by an ethynyl bridge to further enhance the conjugation. The optoelectronics, electrochemical, and thermal properties have been investigated. Organic thin film transistor (OTFT) devices prepared from TDPP-T and TDPP-EDOT have shown p-type mobility. In as cast films, TDPP-T and TDPP-EDOT have shown a hole mobility of 5.44 × 10−6 cm2 V−1 s−1 and 4.13 × 10−6 cm2 V−1 s−1, respectively. The increase in the mobility of TDPP-T and TDPP-EDOT OTFT devices was observed after annealing at 150 °C, after which the mobilities were 3.11 × 10−4 cm2 V−1 s−1 and 2.63 × 10−4 cm2 V−1 s−1, respectively.

Click synthesis of donor–acceptor-type aromatic polymers

2010 ◽  
Vol 82 (4) ◽  
pp. 1001-1009 ◽  
Author(s):  
Tsuyoshi Michinobu
Keyword(s):  
Thermal Properties ◽  
Conjugated Polymers ◽  
Addition Reaction ◽  
Click Reaction ◽  
Energy Levels ◽  
Visible Region ◽  
Side Chain ◽  
Donor Acceptor ◽  
One Step ◽  
Click Synthesis

A high-yielding addition reaction between electron-rich alkynes and a small acceptor molecule, tetracyanoethylene (TCNE), was employed as a new click reaction to construct donor–acceptor chromophores in the polymer main chains and side chains. The donor–acceptor alternating conjugated polymers were prepared from the ferrocene-containing poly(aryleneethynylene)s in one step and atom-economic fashion. The energy levels and thermal properties of the aromatic polyamines substituted by electron-rich alkynes as a side chain can be tunable by the amount of the added TCNE. The resulting donor–acceptor-type polymers feature broad charge-transfer (CT) bands in the visible region, potent redox activities, and improved thermal properties.

Synthesis of Diblock Copolymers With Cellulose Derivatives. 2. Characterization and Thermal Properties of Cellulose Triacetate-Block-Oligoamide-15

Cellulose ◽  
2005 ◽  
Vol 12 (5) ◽  
pp. 527-541 ◽  
Author(s):  
Hiroshi Kamitakahara ◽  
Yukiko Enomoto ◽  
Chinatsu Hasegawa ◽  
Fumiaki Nakatsubo
Keyword(s):  
Thermal Properties ◽  
Diblock Copolymers ◽  
Cellulose Triacetate ◽  
Cellulose Derivatives
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