Self-Healing Polymer Works Without Catalyst

For the first time, a self-healing polymer has been demonstrated that does not require an additional catalyst to start the process.


(Self-healing polymer requires no catalyst)
A cylindrical sample of a polymer (a) was cut in half (b and c)
and the two halves were then allowed to stand for 2 hours by
simple contact (d). After that time, the material could be manually
stretched without rupture (e and f).
(credit: Royal Society of Chemistry)

Self-healing polymers have been able to mend themselves by reforming broken cross-linking bonds, but that requires an external catalyst (trigger) to promote bond repair, such as heat, light, or specific environmental conditions, such as pH.

Ibon Odriozola at the CIDETEC Centre for Electrochemical Technologies in Spain used a poly(urea–urethane) elastomeric network, which completely mended itself after being cut in two by a razor blade. It is the metathesis reaction of aromatic disulphided (which naturally exchange at room temperature) that causes regeneration.

The blogosphere is awash with attention-grabbing headlines regarding "Terminator" polymers, referring to the self-healing characteristics of the T-1000 robot from Terminator 2.

However, real sf fans know that the self-healing material idea is much older. For example, you might be familiar with the self-healing houses from brilliant writer JG Ballard's 1962 story The Thousand Dreams of Stellavista.

Even better, consider the self-healing plastic from Golden Age great Raymond Z. Gallun's 1951 short story Asteroid of Fear, which was perfect for asteroid greenhouses:

But the wide roof was all the way up, now—intact. It made a great, squarish bubble, the skin of which [a 'transparent, wire-strengthened plastic '] was specially treated to stop the hard and dangerous part of the ultra-violet rays of the sun, and also the lethal portion of the cosmic rays. It even had an inter-skin layer of gum that could seal the punctures that grain-of-sand-sized meteors might make.

Via Kurzweil AI; special thanks to Pete for contributing the tip on this story.

Scroll down for more stories in the same category. (Story submitted 9/16/2013)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Material ")

Breathable Carbon Nanotube Membrane For 'Smart Uniforms'
'The 'skin's got these reflexes, changes its permeability...' - Peter Watts, 1999.

Beta-Ti3Au Titanium-Gold Alloy Hardest Tissue-Compatible Metal
It needs a more science-fictional name!

Self-Adapting Composite Heals Itself
'...Could seal the punctures that grain-of-sand-sized meteors might make.' - Ramond Z. Gallun, 1951.

Strong Metal, Light Metal - Same Metal!
'A metal... light as cork and stronger than steel...' - Edgar Rice Burroughs, 1929.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Self-Healing Textiles! Say Goodbye To Torn Jeans
'The constant renewal of the fibers, repairing any faults...'

Fleets Of Ford Autonomous Cars In 5 Years
'He urgently addressed the vehicle's AI."Can't we go any faster?'

Electric Head Patch Helps PTSD Patients
'Don't confuse this with the little ten amp neurosis models.'

MEDi Robot Calms The Nervous Patient
'Specially programmed stabilizing surrogate devices.'

NASA's Interplanetary Internet DTN
'This was the center of Interplanetary Communications.'

Superior Morals For Autonomous Cars
Exemplars of military and civic virtue.

Housekeeping Robots Easy To Imagine, Tough To Make
George Jetson had it easy.

Augmented Reality On Construction Sites
'To Nigel Bishop, the walls had become blue glass...'

Moorebot Personal Assistant Robot
'...a full-size 38-tube fully automatic companion for you!'

One-Shot Gene Therapy Cure $665K
One shot - one cure. Guaranteed.

Laser 'Autonomous Target Selection' Now Available To Curiosity Rover
And, given the birthday situation, is this a good time?

Ultrasonic Wireless ‘Neural Dust’ Sensors For Medical Monitoring
'These dustmotes already had sensors and independence built in.'

Breathable Carbon Nanotube Membrane For 'Smart Uniforms'
'The 'skin's got these reflexes, changes its permeability...'

Record 1007 Robots Dance In Harbinger Of Doom
Okay, Sonny, I know you're out there.

Cicret Makes Your Skin Into A Display
'On the translucent mica-like coverings over the orifices, appeared reddish characters...'

Tesla's To Eye Future With New Sensors?
'I want to show you something new in the way of an automobile.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.