New polymer changes color in seconds

By Michael Lauzon
Correspondent

Published: July 30, 2014 9:51 am ET
Updated: July 30, 2014 9:54 am ET

Image By: Fudan University Zhengzhong Shao

Related to this story

Topics Product News

Researchers have created an unusual polymer that can change color and return to its original color in less than a second by changing its temperature.

Such polymers could promise applications in biological sensors and smart windows that adjust sunlight or heat exchange, according to an article in Chemical World’s July 22 issue and reproduced in a July 25 posting of Scientific American.

The base polymer is a polydiacetylene with peptide side chains introduced during a multi-step polymerization of diacetylene in UV light. Peptides are chain-like molecules made of amino acids, the same building blocks in the proteins of living things.

Lead researcher Zhengzhong Shao of Fudan University in Shanghai said in an email that the new polymer is a nanofiber that could be processed into various shapes. Fibers can be made by extrusion; membranes can be made by coating, and hydrogels may be formed by molding.

Polymers that change color are called thermochromic. Such polymers have been created before but they are slow to change color and only work in a narrow temperature range. Zhengzhong and colleagues in China, Netherlands and United Kingdom were searching for better thermochromic polymers when they discovered the new type that changed color quickly even at temperatures up to 390° F.

Tel. 86-21-656-42866, fax 86-21-656-40293, email zzshao@fudan.edu.cn.


Comments

New polymer changes color in seconds

By Michael Lauzon
Correspondent

Published: July 30, 2014 9:51 am ET
Updated: July 30, 2014 9:54 am ET

Post Your Comments


Back to story


More stories

Image

Welding equipment supplier Forward completes expansion

September 30, 2014 4:08 pm ET

Plastic welding equipment producer Forward Technology completed an expansion it predicts will help customers become more efficient and cut costs.    More

Image

RJG buys UK training group G&A

September 30, 2014 11:10 am ET

G&A Moulding Technology Ltd., a United Kingdom-based training and consultancy group, has been bought by RJG Inc., the U.S.-based training business.    More

Plastics Machinery Group now offering injection presses

September 26, 2014 10:46 am ET

Solon, Ohio-based Plastics Machinery Group is expanding its machinery offerings by adding injection molding machines to its inventory and adding a...    More

Developments in capstocks for appearance, mechanical properties

September 26, 2014 10:40 am ET

Thermoforming Conference attendees learned the latest about capstocks, to improve cosmetics and mechanical properties of sheet.    More

Image

Swiss thermoforming machinery firm WM Wrapping setting up US office

September 25, 2014 2:21 pm ET

Thermoforming industry veteran Kent Johansson has a new gig: Running a U.S. facility for Swiss sheet line and thermoforming machinery maker WM Wrappin...    More

Market Reports

Plastics in Mexico - State of the Industry Report

This report analyzes the $20 million dollar plastics industry in Mexico including sales of machinery & equipment, resins and finished products.

Our industry analysis highlights macro industry trends and micro trends faced by companies that do business in Mexico. The report also provides key industry statistics and forecasts to anticipate future industry expansion.

Learn more

Plastics Caps & Closures Market Report

The annual recap of top trends and future outlook for the plastics caps & closures market features interviews with industry thought leaders and Bill Wood’s economic forecast of trends in growing end markets. You will also gain insight on trends in caps design, materials, machinery, molds & tooling and reviews of mergers & acquisitions.

Learn more

Injection Molders Market Report & Ranking 2014

This special package contains our 132-page 2014 Market Report on the Injection Molding segment and our exclusive 2014 RANKINGS database of 500+ Injection Molders for a discounted package price.

Learn more

Upcoming Plastics News Events

January 14, 2015 - January 14, 2015Plastics in Automotive

February 4, 2015 - February 6, 2015Plastics News Executive Forum 2015

June 2, 2015 - June 3, 2015Plastics Financial Summit - Chicago 2015

September 16, 2015 - September 18, 2015Plastics Caps & Closures - September 2015

More Events