Suppression of phase coarsening in immiscible, co-continuous polymer blends under high temperature quiescent annealing

Soft Matter ◽  
2014 ◽  
Vol 10 (20) ◽  
pp. 3587 ◽  
Author(s):  
Xi-Qiang Liu ◽  
Ruo-Han Li ◽  
Rui-Ying Bao ◽  
Wen-Rou Jiang ◽  
Wei Yang ◽  
...  
Keyword(s):  
High Temperature ◽  
Polymer Blends ◽  
Phase Coarsening

scholarly journals Semiconducting polymer blends that exhibit stable charge transport at high temperatures

Science ◽  
2018 ◽  
Vol 362 (6419) ◽  
pp. 1131-1134 ◽  
Author(s):  
Aristide Gumyusenge ◽  
Dung T. Tran ◽  
Xuyi Luo ◽  
Gregory M. Pitch ◽  
Yan Zhao ◽  
...  
Keyword(s):  
High Temperature ◽  
Polymer Blends ◽  
Charge Transport ◽  
Organic Semiconductors ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Hole Mobility ◽  
General Strategy ◽  
Semiconducting Polymer ◽  
High Temperature Operation

Although high-temperature operation (i.e., beyond 150°C) is of great interest for many electronics applications, achieving stable carrier mobilities for organic semiconductors at elevated temperatures is fundamentally challenging. We report a general strategy to make thermally stable high-temperature semiconducting polymer blends, composed of interpenetrating semicrystalline conjugated polymers and high glass-transition temperature insulating matrices. When properly engineered, such polymer blends display a temperature-insensitive charge transport behavior with hole mobility exceeding 2.0 cm2/V·s across a wide temperature range from room temperature up to 220°C in thin-film transistors.

High Temperature Resistant Polymer Blends Based on Polybutyleneterephthalate and Polyolefins

2004 ◽  
Vol 31 (4) ◽  
pp. 63-67
Author(s):  
M.Kh. Gaeva ◽  
T.A. Borukaev ◽  
N.I. Mashukov ◽  
A.K. Mikitaev
Keyword(s):  
High Temperature ◽  
Polymer Blends

High-temperature pyrolysis of ceramic fibers derived from polycarbosilane–polymethylhydrosiloxane polymer blends with porous structures

2010 ◽  
Vol 45 (1) ◽  
pp. 139-145 ◽  
Author(s):  
Ken’ichiro Kita ◽  
Masaki Narisawa ◽  
Atsushi Nakahira ◽  
Hiroshi Mabuchi ◽  
Masayoshi Itoh ◽  
...  
Keyword(s):  
High Temperature ◽  
Polymer Blends ◽  
Porous Structures ◽  
Ceramic Fibers

The effect of chain mobility on the coarsening process of co-continuous, immiscible polymer blends under quiescent melt annealing

2017 ◽  
Vol 19 (20) ◽  
pp. 12712-12719 ◽  
Author(s):  
Tao Gong ◽  
Rui-Ying Bao ◽  
Zheng-Ying Liu ◽  
Bang-Hu Xie ◽  
Ming-Bo Yang ◽  
...  
Keyword(s):  
Polymer Blends ◽  
Immiscible Polymer Blends ◽  
Phase Coarsening ◽  
Chain Mobility ◽  
Immiscible Polymer ◽  
Melt Annealing ◽  
The Relationship

The relationship between the mobility of polymer molecular chains and the phase coarsening process of co-continuous, immiscible polymer blends under quiescent melt annealing is presented.

Modeling and Simulation of the Process for the Generation of Gradient Porous Structures From Immiscible Polymer Blends

2020 ◽  
Vol 142 (3) ◽  
Author(s):  
Hangming Shen ◽  
Donggang Yao ◽  
Wei Zhang ◽  
Qian Ye
Keyword(s):  
Polymer Blends ◽  
Phase Field ◽  
Phase Structure ◽  
Porous Polymers ◽  
Porous Structures ◽  
Immiscible Polymer Blends ◽  
Thermal Boundary Conditions ◽  
Phase Coarsening ◽  
Phase Structures ◽  
Gradient Phase

Abstract There has been growing interest in integrating gradient porous structures into synthetic materials like polymers. One particular method for making gradient porous polymers is nonisothermal annealing of co-continuous phase structures of immiscible polymer blends under well-defined thermal boundary conditions. In this paper, we report a method to simulate this nonisothermal phase coarsening process for the generation of gradient-phase structures by the combined implementation of phase-field transport and momentum transport. Specifically, a phase-field equation is solved first to obtain a phase structure with phase size comparable with that of the blend to be annealed. This phase structure is then used as an initial geometry in a two-phase moving-interface flow simulation to gauge into the phase structure coarsening process. Several case studies were performed, and the results show that the controllable generation of gradient-phase structures can be enabled by well-designed geometry and thermal boundary conditions. Using 2D simulations, different types of gradient-phase structures experimentally observed were predicted. With increasing power in computation, the capability of 3D simulation may be unveiled for a more accurate prediction of the nonisothermal phase coarsening process and may ultimately evolve into a useful tool for the design and processing of gradient porous polymers.

Sign in / Sign up

Export Citation Format

Share Document