College of Engineering and Polymer Science

Date of Last Revision

2022-04-28 13:43:59


Chemical Engineering

Honors Course

4200 497 - 002

Number of Credits


Degree Name

Bachelor of Science

Date of Expected Graduation

Spring 2022


Fouling is a process where particles, proteins, or microorganisms will accumulate onto a material [2]. This can lead to biofilms in medical implants, which can trap and create drug resistant bacteria [5]. Due to this, the study and creation of anti-fouling polymeric films that is stable in aqueous environments is essential. The goal of this study is to utilize APTES to retain the already studied PSS-PEG anti-fouling films. The films that are created is a thermally crosslinked network of the polystyrene sulfonic acid (PSS) and polyethylene glycol (PEG) with differing mass fractions (75- 25 and 55-45 PSS-PEG). To retain the polymer film, the APTES (3-aminopropyltriethoxysilane) was mixed into the solution. Contact angle measurements analyzed with a simple T-test and visualization through photography and software, ImageJ, were used to measure retention. Generally, the contact angles for APTES treated films were greater than the controls but the p- values proved the averages to not be statistically impactful except for PSS-PEG 75-25 APTES treated films for both Advancing and Receding contact angle measurements and PSS-PEG 55-45 5.0% APTES for receding contact angle measurements. In general, the addition of APTES to the PSS-PEG polymer film led to greater retention but more studies are needed.

Research Sponsor

Dr. Newby

First Reader

Dr. Evans

Second Reader

Dr. Zheng

Honors Faculty Advisor

Dr. Newby



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.