Convenient control over high temperature shape memory polymers

Deyan Kong; Xinli Xiao

Convenient control over high temperature shape memory polymers

Deyan Kong
, Xinli Xiao^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering, Harbin Institute of Technology

Research output: Contribution to conference › Paper › peer-review

Abstract

Glass transition temperature (T_g) is crucial in determining application areas of high temperature shape memory polymers (SMPs), but some T_gs are difficult or uneconomic to be obtained. Here we introduce a facile way to prepare high temperature SMPs with controllable T_gs from 456 to 503 K by copolymerization of polyimides, and relationships between T_gs and diamine components of the shape memory copolyimides agree with Fox Equation. These copolyimides can fix temporary shape and return to original shape nicely, and the possible mechanisms of their high shape fixity and shape recovery are analyzed on the basis of thermomechanical properties and molecular structures. The copolymerization of shape memory polyimides has offered an effective way to obtain high temperature SMPs with desired properties.

Original language	English
State	Published - 2017
Externally published	Yes
Event	21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China Duration: 20 Aug 2017 → 25 Aug 2017

Conference

Conference	21st International Conference on Composite Materials, ICCM 2017
Country/Territory	China
City	Xi'an
Period	20/08/17 → 25/08/17

Keywords

Copolyimide
Fox equation
Glass transition temperature
Shape memory polymer

Cite this

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title = "Convenient control over high temperature shape memory polymers",

abstract = "Glass transition temperature (Tg) is crucial in determining application areas of high temperature shape memory polymers (SMPs), but some Tgs are difficult or uneconomic to be obtained. Here we introduce a facile way to prepare high temperature SMPs with controllable Tgs from 456 to 503 K by copolymerization of polyimides, and relationships between Tgs and diamine components of the shape memory copolyimides agree with Fox Equation. These copolyimides can fix temporary shape and return to original shape nicely, and the possible mechanisms of their high shape fixity and shape recovery are analyzed on the basis of thermomechanical properties and molecular structures. The copolymerization of shape memory polyimides has offered an effective way to obtain high temperature SMPs with desired properties.",

keywords = "Copolyimide, Fox equation, Glass transition temperature, Shape memory polymer",

author = "Deyan Kong and Xinli Xiao",

note = "Publisher Copyright: {\textcopyright} 2017 International Committee on Composite Materials. All rights reserved.; 21st International Conference on Composite Materials, ICCM 2017 ; Conference date: 20-08-2017 Through 25-08-2017",

year = "2017",

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TY - CONF

T1 - Convenient control over high temperature shape memory polymers

AU - Kong, Deyan

AU - Xiao, Xinli

PY - 2017

Y1 - 2017

N2 - Glass transition temperature (Tg) is crucial in determining application areas of high temperature shape memory polymers (SMPs), but some Tgs are difficult or uneconomic to be obtained. Here we introduce a facile way to prepare high temperature SMPs with controllable Tgs from 456 to 503 K by copolymerization of polyimides, and relationships between Tgs and diamine components of the shape memory copolyimides agree with Fox Equation. These copolyimides can fix temporary shape and return to original shape nicely, and the possible mechanisms of their high shape fixity and shape recovery are analyzed on the basis of thermomechanical properties and molecular structures. The copolymerization of shape memory polyimides has offered an effective way to obtain high temperature SMPs with desired properties.

AB - Glass transition temperature (Tg) is crucial in determining application areas of high temperature shape memory polymers (SMPs), but some Tgs are difficult or uneconomic to be obtained. Here we introduce a facile way to prepare high temperature SMPs with controllable Tgs from 456 to 503 K by copolymerization of polyimides, and relationships between Tgs and diamine components of the shape memory copolyimides agree with Fox Equation. These copolyimides can fix temporary shape and return to original shape nicely, and the possible mechanisms of their high shape fixity and shape recovery are analyzed on the basis of thermomechanical properties and molecular structures. The copolymerization of shape memory polyimides has offered an effective way to obtain high temperature SMPs with desired properties.

KW - Copolyimide

KW - Fox equation

KW - Glass transition temperature

KW - Shape memory polymer

UR - https://www.scopus.com/pages/publications/85053153647

M3 - 论文

AN - SCOPUS:85053153647

T2 - 21st International Conference on Composite Materials, ICCM 2017

Y2 - 20 August 2017 through 25 August 2017

ER -

Convenient control over high temperature shape memory polymers

Abstract

Conference

Keywords

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