tag:blogger.com,1999:blog-116667882011-04-21T12:04:48.903-07:00For allSCIENCEhttp://www.blogger.com/profile/02069644933446699323noreply@blogger.comBlogger11100tag:blogger.com,1999:blog-11666788.post-1111672352266131362005-03-24T05:06:00.000-08:002005-03-24T05:52:32.266-08:00<div align="justify"><span style="font-family:courier new;">There are two types of polymers; synthetic polymer and natural polymer. PE,PP ect are synthetic polymers made from ethylene. The things we use today are usually made from synthetic polymers.Shell of the schrimp, rubber etc are natural polymers.Synthetic polymers don't decay while the natural polymers can decay easily. Degradable polymers can be prepared using starch.</span></div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/11666788-111167235226613136?l=makhine.blogspot.com' alt='' /></div>SCIENCEhttp://www.blogger.com/profile/02069644933446699323noreply@blogger.com3