pset3 - Problem Set 3 Issued: 03/02/06 Due: 03/09/06 100...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
20.462J/3.962J Issued: 03/02/06 Spring 2006 Due: 03/09/06 100 points total 1. Consider a hydrogel formed by polymerizing acrylate-encapped polylactide-b-poly(ethylene glycol)-b-polylactide, as illustrated below. The gel will break down to water-soluble products via hydrolysis of the PLA linkages in the crosslinks, releasing water-soluble PEG and polyacrylate chains. Also shown below is experimental data for the swelling ratio Q vs. time for a gel with 2 polylactide repeat units on each side of PEG in the crosslinks, and a best-fit line for an exponential dependence of swelling on time. Use this information to answer the questions below: our objective is to predict the exponential swelling behavior of these gels. Figure removed due to copyright restrictions. Please see: Figure 2 in Mason, Mariah N., Andrew T. Metters, Christopher N. Bowman, and Kristi S. Anseth. “Predicting Controlled-Release Behavior of Degradable PLA-b-PEG-b-PLA Hydrogels.” Macromolecules 34, no.13 (2001): 4630-4635. 20.462J/3.962J PS 3
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/11/2011 for the course BIO 20.410j taught by Professor Rogerd.kamm during the Spring '03 term at MIT.

Page1 / 3

pset3 - Problem Set 3 Issued: 03/02/06 Due: 03/09/06 100...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online