Programmable Shape Recovery Process of Water-Responsive Shape-Memory Poly(vinyl alcohol) by Wettability Contrast Strategy

2017 ◽  
Vol 9 (6) ◽  
pp. 5495-5502 ◽  
Author(s):  
Zhiqiang Fang ◽  
Yudi Kuang ◽  
Panpan Zhou ◽  
Siyi Ming ◽  
Penghui Zhu ◽  
...  
Keyword(s):  
Shape Memory ◽  
Vinyl Alcohol ◽  
Shape Recovery ◽  
Recovery Process ◽  
Poly Vinyl Alcohol

Investigate of Electrical Conductivity of Shape-Memory Polymer Filled with Carbon Black

2008 ◽  
Vol 47-50 ◽  
pp. 714-717 ◽  
Author(s):  
Xin Lan ◽  
Jin Song Leng ◽  
Yan Ju Liu ◽  
Shan Yi Du
Keyword(s):  
Electrical Conductivity ◽  
Carbon Black ◽  
Shape Memory ◽  
Shape Recovery ◽  
Volume Fraction ◽  
Shape Memory Polymer ◽  
Recovery Process ◽  
Thermomechanical Properties ◽  
Electrically Conductive ◽  
New System

A new system of thermoset styrene-based shape-memory polymer (SMP) filled with carbon black (CB) is investigated. To realize the electroactive stimuli of SMP, the electrical conductivity of SMP filled with various amounts of CB is characterized. The percolation threshold of electrically conductive SMP filled with CB is about 3% (volume fraction of CB), which is much lower than many other electrically conductive polymers. When applying a voltage of 30V, the shape recovery process of SMP/CB(10 vol%) can be realized in about 100s. In addition, the thermomechanical properties are also characterized by differential scanning calorimetery (DSC).

Water Induced Shape Memory and Healing Effects by Introducing Carboxymethyl Cellulose Sodium into Poly(vinyl alcohol)

2018 ◽  
Vol 57 (44) ◽  
pp. 15046-15053 ◽  
Author(s):  
Jiyu Yang ◽  
Yanan Zheng ◽  
Linjuan Sheng ◽  
Hongmei Chen ◽  
Lijuan Zhao ◽  
...  
Keyword(s):  
Shape Memory ◽  
Vinyl Alcohol ◽  
Carboxymethyl Cellulose ◽  
Poly Vinyl Alcohol ◽  
Carboxymethyl Cellulose Sodium

Thermal and water dual-responsive shape memory poly(vinyl alcohol)/Al2O3 nanocomposite

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91213-91217 ◽  
Author(s):  
Quanming Bai ◽  
Gongzheng Zhang ◽  
Bo Xu ◽  
Xianqi Feng ◽  
Haoyang Jiang ◽  
...  
Keyword(s):  
Shape Memory ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Dual Responsive ◽  
New Type

A new type of thermal and water dual-responsive shape memory poly(vinyl alcohol)/Al2O3 nanocomposite was reported.

Microwave-Induced Shape-Memory Effect of Chemically Crosslinked Moist Poly(vinyl alcohol) Networks

2011 ◽  
Vol 212 (14) ◽  
pp. 1460-1468 ◽  
Author(s):  
Haiyan Du ◽  
Yunlong Yu ◽  
Guangming Jiang ◽  
Junhua Zhang ◽  
JianJun Bao
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

Thermo- and water-induced shape memory poly(vinyl alcohol) supramolecular networks crosslinked by self-complementary quadruple hydrogen bonding

2016 ◽  
Vol 7 (43) ◽  
pp. 6637-6644 ◽  
Author(s):  
Hongmei Chen ◽  
Ying Li ◽  
Gong Tao ◽  
Lin Wang ◽  
Shaobing Zhou
Keyword(s):  
Hydrogen Bonding ◽  
Shape Memory ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Donor Acceptor ◽  
Quadruple Hydrogen Bonding ◽  
Supramolecular Networks ◽  
First Time

Poly(vinyl alcohol) (PVA) supramolecular networks cross-linked by ureido-pyrimidinone (UPy) dimers via strong quadruple hydrogen bonding in donor–donor–acceptor–acceptor (DDAA) arrays have been synthesized for the first time.

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