Conjugated Poly-P-Phenylene (PPP) From Poly(1,3-Cyclohexadiene) (PCHD) Homo- and Block Copolymers: Controlled Processability and Properties

1999 ◽  
Vol 561 ◽  
Author(s):  
J. Mays ◽  
K. Hong ◽  
Y. Wang ◽  
R.C. Advincula
Keyword(s):  
Block Copolymer ◽  
Conjugated Polymers ◽  
Anionic Polymerization ◽  
Conjugated Polymer ◽  
Device Fabrication ◽  
Copolymer Composition ◽  
Photoluminescence Properties ◽  
Living Anionic Polymerization ◽  
Dehydrogenation Reaction ◽  
The Right

ABSTRACTConjugated polymers have been used as solid-state materials for a variety of opto-electronic applications. Thus, their processability in a number of device fabrication protocols is an important consideration. In this report, we indicate our results on the synthesis of conjugated poly-p-phenylene (PPP) materials derived from poly(1,3-cyclohexadiene) (PCHD). The precursor PCHD polymers were synthesized by living anionic polymerization to produce homo-and block copolymer configurations with polystyrene. We have used a variety of initiators, solvent, and temperature conditions to determine the right parameters for obtaining narrow MWD polymers. The conditions for polymerization determined the ratio of 1,2 and 1,4 isomers in the microstructure. We then proceeded with conversion to PPP derivatives using a dehydrogenation reaction with chloranil. Our results indicate a systematic conversion to a conjugated polymer with increased solubility and photoluminescence properties. The microstructure, MW and block copolymer composition affecting the processability and conversion properties dramatically.

Facile anionic synthesis of a well-controlled thermally cross-linkable block copolymer for polymer-based resistive memory device applications

2015 ◽  
Vol 6 (23) ◽  
pp. 4264-4270 ◽  
Author(s):  
Beom-Goo Kang ◽  
Jingon Jang ◽  
Younggul Song ◽  
Myung-Jin Kim ◽  
Takhee Lee ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Anionic Polymerization ◽  
Memory Device ◽  
Resistive Memory ◽  
Living Anionic Polymerization ◽  
Ethynyl Group ◽  
Anionic Synthesis ◽  
Device Applications

A well-defined block copolymer containing a thermally cross-linkable ethynyl group has been synthesized by living anionic polymerization for polymer-based resistive memory device applications.

scholarly journals Living anionic polymerization of a block copolymer and the preparation of superhydrophobic surfaces based on the method of phase separation

2012 ◽  
Vol 45 (2) ◽  
pp. 125-128 ◽  
Author(s):  
Yanfen Huang ◽  
Xinghai Liu ◽  
Fangfang Zhang ◽  
Jinfeng Dong ◽  
Yunbai Luo ◽  
...  
Keyword(s):  
Phase Separation ◽  
Block Copolymer ◽  
Anionic Polymerization ◽  
Superhydrophobic Surfaces ◽  
Living Anionic Polymerization

Preparation of bright-emissive hybrid materials based on light-harvesting POSS having radially integrated luminophores and commercial π-conjugated polymers

2019 ◽  
Vol 3 (2) ◽  
pp. 314-320 ◽  
Author(s):  
Masayuki Gon ◽  
Keita Sato ◽  
Keigo Kato ◽  
Kazuo Tanaka ◽  
Yoshiki Chujo
Keyword(s):  
Conjugated Polymers ◽  
Hybrid Materials ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Light Harvesting ◽  
Photoluminescence Properties

Photoluminescence properties of π-conjugated polymer films are dramatically enhanced by hybridization with a light-harvesting POSS having radially-integreated luminophores.

Conjugated polymer-based electrochromics: materials, device fabrication and application prospects

2016 ◽  
Vol 4 (31) ◽  
pp. 7364-7376 ◽  
Author(s):  
Wei Teng Neo ◽  
Qun Ye ◽  
Soo-Jin Chua ◽  
Jianwei Xu
Keyword(s):  
Conjugated Polymers ◽  
Conjugated Polymer ◽  
Device Fabrication ◽  
Recent Developments ◽  
Application Prospects

The recent developments and trends of electrochromic conjugated polymers and their devices are highlighted in this review.

Synthesis of symmetric H-shaped block copolymer by the combination of ATRP and living anionic polymerization

Polymer ◽  
2007 ◽  
Vol 48 (9) ◽  
pp. 2489-2495 ◽  
Author(s):  
Xifei Yu ◽  
Guo Zhang ◽  
Tongfei Shi ◽  
Yanchun Han ◽  
Lijia An
Keyword(s):  
Block Copolymer ◽  
Anionic Polymerization ◽  
Living Anionic Polymerization

Understanding the Morphologies and Polymerization Mechanism of Homopolymer and Block Copolymer Brushes by Living Anionic Surface Initiated Polymerization

2002 ◽  
Vol 734 ◽  
Author(s):  
Mi-Kyoung Park ◽  
George Sakellariou ◽  
Stergios Pispas ◽  
Nikos Hadjichristides ◽  
Jimmy Mays ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Anionic Polymerization ◽  
Polymer Brushes ◽  
High Vacuum ◽  
Living Anionic Polymerization ◽  
Self Assembled Monolayer ◽  
Surface Initiated Polymerization ◽  
Copolymer Brushes ◽  
Polymerization Conditions ◽  
Anionic Surface

ABSTRACTHomopolymer and block copolymer brushes grafted from Au and Si (SiOx) surfaces via living anionic surface initiated polymerization (LASIP) has been reported. 1,1-diphenylethylene (DPE) derivative, an initiator for anionic polymerization, was grafted onto planar Si-wafer and Au surfaces by self-assembled monolayer (SAM) techniques. n-BuLi was used to activate the DPE for anionic polymerization of monomers at the interface under high vacuum. By a careful sequence of monomer introduction, reaction, and termination, homopolymer and block copolymer tethered polymer brushes were obtained. The importance of initiator activation, control of polymerization conditions, and removal of excess BuLi is emphasized. Interesting differences in morphology, thickness, grafting density, and polymerization conditions contrasts LASIP from solution and other surface initiated polymerization (SIP) mechanisms. The formation of block copolymer sequences highlights the unique utility of a living anionic polymerization technique on surfaces.

Living Anionic Polymerization of 4-Halostyrenes

2021 ◽  
Vol 54 (3) ◽  
pp. 1489-1498
Author(s):  
Raita Goseki ◽  
Taro Koizumi ◽  
Reina Kurakake ◽  
Satoshi Uchida ◽  
Takashi Ishizone
Keyword(s):  
Anionic Polymerization ◽  
Living Anionic Polymerization
Sign in / Sign up

Export Citation Format

Share Document