Shape memory effect of poly(ethylene terephthalate) and poly(ethylene glycol) copolymer cross-linked with glycerol and sulfoisophthalate group and its application to impact-absorbing composite material

2004 ◽  
Vol 94 (1) ◽  
pp. 308-316 ◽  
Author(s):  
Chul Park ◽  
Joon Yul Lee ◽  
Byoung Chul Chun ◽  
Yong-Chan Chung ◽  
Jae Whan Cho ◽  
...  
Keyword(s):  
Composite Material ◽  
Ethylene Glycol ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Poly(p-dioxanone)–poly(ethylene glycol) network: synthesis, characterization, and its shape memory effect

2012 ◽  
Vol 3 (9) ◽  
pp. 2508 ◽  
Author(s):  
Ying Niu ◽  
Pei Zhang ◽  
Jingjing Zhang ◽  
Liping Xiao ◽  
Keke Yang ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Network Synthesis ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene

Triple-shape memory effect in poly (ethylene terephthalate) (PET) film

2018 ◽  
Vol 47 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Xue Lian Wu ◽  
Chuan Peng Yang ◽  
Yu Qin Guo ◽  
Hong Yu Wang
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Ethylene Terephthalate ◽  
Content Type ◽  
Poly Ethylene Terephthalate ◽  
The Difference ◽  
Triple Shape Memory ◽  
Poly Ethylene ◽  
Pet Film

Purpose This paper aims to focus on achieving triple-shape memory effect (triple-SME) of a commercial poly (ethylene terephthalate) (PET) film with the thickness of 100 µm. Design/methodology/approach The thermal characteristics and microstructure of PET film were characterized by differential scanning calorimetry, thermogravimetric analysis and wide-angle X-ray diffraction analysis. The dual-shape memory effect (dual-SME) of the PET film was then systematically investigated, and based on that, triple-SME in thin PET film was achieved. Findings Investigation of the dual-SME in PET film revealed the difference between recovery temperature and programming temperature reduced with increasing programming temperature. An obvious intermediate shape shifting between the original and final programmed shape was observed during shape recovery in triple-shape memory behaviors. Research limitations/implications Compared with dual-SME in polymer, relatively less work has been done on multi-SME in polymer, especially in thin polymer film. In this study, triple-SME in a PET film was investigated based on the results of dual-SME of the film. The main implication of the study is on how to achieve a watermark between the final programmed pattern and the original pattern, for the application of shape memory polymer in anti-counterfeiting label. Originality/value Dual- and triple-SMEs were achieved in a PET film that is only 100 µm in thickness, and the underlying mechanism for the difference between programming temperature and recovery temperature was discussed. For the novel application of triple-SME in anti-counterfeit label, the watermark during shape recovery in triple-SME can effectively prevent duplication.

Hydrogen-bonded polymer network—poly(ethylene glycol) complexes with shape memory effect

2002 ◽  
Vol 12 (10) ◽  
pp. 2957-2960 ◽  
Author(s):  
Yiping Cao ◽  
Ying Guan ◽  
Juan Du ◽  
Juan Luo ◽  
Yuxing Peng ◽  
...  
Keyword(s):  
Ethylene Glycol ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Polymer Network ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene ◽  
Hydrogen Bonded

Poly(ethylene terephthalate) copolymers with a smaller amount of poly(ethylene glycol)s and poly(butylene glycol)s

Polymer ◽  
1995 ◽  
Vol 36 (13) ◽  
pp. 2629-2635 ◽  
Author(s):  
Tsuyoshi Kiyotsukuri ◽  
Tsuyoshi Masuda ◽  
Naoto Tsutsumi ◽  
Wataru Sakai ◽  
Minoru Nagata
Keyword(s):  
Ethylene Glycol ◽  
Ethylene Terephthalate ◽  
Poly Ethylene Glycol ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene
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