skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Advancing reversible shape memory by tuning the polymer network architecture

Abstract

Because of counteraction of a chemical network and a crystalline scaffold, semicrystalline polymer networks exhibit a peculiar behavior—reversible shape memory (RSM), which occurs naturally without applying any external force and particular structural design. There are three RSM properties: (i) range of reversible strain, (ii) rate of strain recovery, and (iii) decay of reversibility with time, which can be improved by tuning the architecture of the polymer network. Different types of poly(octylene adipate) networks were synthesized, allowing for control of cross-link density and network topology, including randomly cross-linked network by free-radical polymerization, thiol–ene clicked network with enhanced mesh uniformity, and loose network with deliberately incorporated dangling chains. It is shown that the RSM properties are controlled by average cross-link density and crystal size, whereas topology of a network greatly affects its extensibility. In conclusion, we have achieved 80% maximum reversible range, 15% minimal decrease in reversibility, and fast strain recovery rate up to 0.05 K –1, i.e., ca. 5% per 10 s at a cooling rate of 5 K/min.

Authors:
 [1];  [1];  [1];  [2];  [2];  [1]
  1. Univ. of North Carolina, Chapel Hill, NC (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1328375
Report Number(s):
BNL-112682-2016-JA
Journal ID: ISSN 0024-9297; R&D Project: 16075; 10675; KC0403020
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Macromolecules
Additional Journal Information:
Journal Volume: 49; Journal Issue: 4; Journal ID: ISSN 0024-9297
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; polymer; shape memory; Center for Functional Nanomaterials

Citation Formats

Li, Qiaoxi, Zhou, Jing, Vatankhah-Varnoosfaderani, Mohammad, Nykypanchuk, Dmytro, Gang, Oleg, and Sheiko, Sergei S. Advancing reversible shape memory by tuning the polymer network architecture. United States: N. p., 2016. Web. doi:10.1021/acs.macromol.5b02740.
Li, Qiaoxi, Zhou, Jing, Vatankhah-Varnoosfaderani, Mohammad, Nykypanchuk, Dmytro, Gang, Oleg, & Sheiko, Sergei S. Advancing reversible shape memory by tuning the polymer network architecture. United States. doi:10.1021/acs.macromol.5b02740.
Li, Qiaoxi, Zhou, Jing, Vatankhah-Varnoosfaderani, Mohammad, Nykypanchuk, Dmytro, Gang, Oleg, and Sheiko, Sergei S. Tue . "Advancing reversible shape memory by tuning the polymer network architecture". United States. doi:10.1021/acs.macromol.5b02740. https://www.osti.gov/servlets/purl/1328375.
@article{osti_1328375,
title = {Advancing reversible shape memory by tuning the polymer network architecture},
author = {Li, Qiaoxi and Zhou, Jing and Vatankhah-Varnoosfaderani, Mohammad and Nykypanchuk, Dmytro and Gang, Oleg and Sheiko, Sergei S.},
abstractNote = {Because of counteraction of a chemical network and a crystalline scaffold, semicrystalline polymer networks exhibit a peculiar behavior—reversible shape memory (RSM), which occurs naturally without applying any external force and particular structural design. There are three RSM properties: (i) range of reversible strain, (ii) rate of strain recovery, and (iii) decay of reversibility with time, which can be improved by tuning the architecture of the polymer network. Different types of poly(octylene adipate) networks were synthesized, allowing for control of cross-link density and network topology, including randomly cross-linked network by free-radical polymerization, thiol–ene clicked network with enhanced mesh uniformity, and loose network with deliberately incorporated dangling chains. It is shown that the RSM properties are controlled by average cross-link density and crystal size, whereas topology of a network greatly affects its extensibility. In conclusion, we have achieved 80% maximum reversible range, 15% minimal decrease in reversibility, and fast strain recovery rate up to 0.05 K–1, i.e., ca. 5% per 10 s at a cooling rate of 5 K/min.},
doi = {10.1021/acs.macromol.5b02740},
journal = {Macromolecules},
number = 4,
volume = 49,
place = {United States},
year = {2016},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

Save / Share: