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An optically transparent light-colored high-temperature-resistant shape-memory polymer and its preparation method

A memory polymer and optically transparent technology, applied in the field of light-colored polymers and their preparation, can solve the problems of low thickness and low phase transition temperature of transparent polyimide, and achieve excellent thermal stability

Active Publication Date: 2017-04-26
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing optically transparent shape memory polymer has a low phase transition temperature and the existing transparent polyimide has a low thickness and is difficult to produce a shape memory effect, which cannot meet the requirements for the use of optoelectronic devices in a high temperature environment. Provided is an optically transparent light-colored heat-resistant shape memory polymer and a preparation method thereof

Method used

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  • An optically transparent light-colored high-temperature-resistant shape-memory polymer and its preparation method
  • An optically transparent light-colored high-temperature-resistant shape-memory polymer and its preparation method
  • An optically transparent light-colored high-temperature-resistant shape-memory polymer and its preparation method

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specific Embodiment approach 1

[0047] Specific Embodiment 1: This embodiment is an optically transparent light-colored high-temperature-resistant shape-memory polymer that uses 1,3-bis(3-aminophenoxy)benzene and bisphenol A diether dianhydride as reactive monomers Prepared; the molar ratio of 1,3-bis(3-aminophenoxy)benzene to bisphenol A diether dianhydride is (0.9-1.1):1.

[0048] The advantage of this implementation mode:

[0049] 1. Phase transition temperature T of the optically transparent light-colored heat-resistant shape memory polymer prepared in this embodiment g It is 168°C-177°C. Compared with the phase transition temperature of the optically transparent light-colored shape memory polymer reported in the literature at 63°C, its phase transition temperature T g Increased by 105℃~114℃, it can be applied to optoelectronic devices at high temperature;

[0050] 2. The optically transparent light-colored high-temperature-resistant shape-memory polymer prepared in this embodiment can still have a goo...

specific Embodiment approach 2

[0054] Embodiment 2: The difference between this embodiment and Embodiment 1 is that it is characterized in that the structural formula of an optically transparent light-colored high-temperature-resistant shape memory polymer is:

[0055]

[0056] Wherein, the range of n is 20-85, and n is an integer. Others are the same as the first embodiment.

specific Embodiment approach 3

[0057] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the number average molecular weight of the optically transparent light-colored heat-resistant shape memory polymer is 20.1kg / mol~52.2kg / mol . Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to an optical transparent light-colored polymer and a preparation method thereof, in particular to an optical transparent light-colored high temperature-resisting shape memory polymer and a preparation method thereof, and aims to solve the problems, in the prior art, that an optical transparent shape memory polymer is relatively low in phase inversion temperature and existing transparent polyimide is difficult to generate a shape memory effect due to relatively small thickness, so that the use requirement of a photoelectronic device cannot be met in a high temperature environment. The optical transparent light-colored high temperature-resisting shape memory polymer is prepared from 1,3-Bis(3-aminophenoxy)benzene and 4,4'- Bisphenol A dianhydride as reactive monomers, and has the structural formula shown in the specification. The preparation method comprises the following steps: firstly, dissolving 1,3-Bis(3-aminophenoxy)benzene; secondly, preparing a sol-gel polyamide acid; thirdly, removing residual bubbles; fourthly, performing thermal imidization; fifthly, stripping to obtain the optical transparent light-colored high temperature-resisting shape memory polymer. Through the invention, the optical transparent light-colored high temperature-resisting shape memory polymer can be obtained.

Description

technical field [0001] The invention relates to an optically transparent light-colored polymer and a preparation method thereof. Background technique [0002] Shape memory polymers (shape memory polymers, SMP) are a class of smart polymer materials that can memorize temporary shapes and restore their original shapes under external stimuli such as heat, light, electricity, and magnetic fields. Compared with shape memory metal alloys, SMP has the advantages of large reversible strain, low density, easy processing, and easy control of shape recovery temperature. Among them, the poly(ethylene-co-vinyl acetate) SMP material, which is optically transparent and has a phase transition temperature of 63°C, shows great application potential in the field of optoelectronic devices, because optical devices such as gratings and optical lenses based on this transparent SMP can realize their Real-time optimization of optical performance. However, in many cases, optoelectronic devices oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/10
CPCY02P20/582
Inventor 肖鑫礼孔德艳邱雪英张文博张申胡杨
Owner HARBIN INST OF TECH
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