A New Class of Photoresponsive Polymers that Undergo Controlled and Complete Polymer Chain Scission Upon Irradiation at 300nm
Event Date: 05/16/2012 11:00 AM Eastern Daylight Time
Stimuli responsive materials are of interest in a number of applications. Of these, photoresponsive materials have a unique advantage since their response can be temporally controlled. We have developed a series of photodegradable phenacyl based polycarbonates. Hydroxyphenacyl based phototriggers, developed by Givens and coworkers, have been demonstrated to be a very efficient photoactivated protecting group for the release of esters, phosphates and thiols. We have incorporated this photoactive unit in the polymer backbone and irradiation of this polymer at 300 nm leads to polymer chain scission that results in substantial decrease in molecular weight. These polymers undergo photoinitiated degradation in both solution and the solid state. Well defined 2D patterns can be formed from films of these polymers by the use of simple masks. These polymers also have the potential for controlled release applications. As a model, the release of dyes such as rhodamine 6G or therapeutics such as indomethacin indicate controlled release upon irradiation of polymer films encapsulated with these molecules.


Laura Bush

Editorial Director
LCGC North America


Abraham Joy

Assistant Professor
Department of Polymer Science
The University of Akron

This is a FREE streaming audio Webcast and does not require a phone line. If you have any questions regarding this Webcast, please contact Jamie Carpenter, jcarpenter@advanstar.com.

Register for this FREE Webcast!

 If you have previously registered for this event, please login to the archive below:

Registration is required to attend this event. Please register now.
First Name*
Last Name*
Job Title*
Organization Name*
Organization Address*
Organization Address 2
State or Province*
Zip/Postal Code*
E-mail address*
Number of Employees*
Work Phone*
Are you synthesizing and/or characterizing photoresponsive polymers?*Yes
Are you working on applications for controlled drug delivery systems or in creating micro-patterned surfaces?*Yes
Which of the following characteristics do you determine when analyzing your polymer?*Molar mass/molar mass distribution
Chemical Composition
If Other:
You must have javascript and cookies enabled to complete registration.
Please enable Cookies in your browser before registering for the webcast.
*Denotes required.

Advanstar Communications provides certain customer contact data (such as customers' names, addresses, phone numbers and e-mail addresses) to third parties who wish to promote relevant products, services and other opportunities which may be of interest to you. If you do not want Advanstar Communications to make your contact information available to third parties for marketing purposes, simply call (toll free) 1-866-529-2922 at any time, or fax us at 1-218-740-6417. Outside the U.S., please phone 1-218-740-6395.

Contact us by mail at Advanstar Communications Inc., 131 West First St., Duluth, MN 55802-2065, USA.

Privacy Policy