Differences between current version and revision by previous author of PVC.
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| Newer page: | version 3 | Last edited on Tuesday, April 20, 2004 2:20:18 am | by AristotlePagaltzis | |
| Older page: | version 2 | Last edited on Thursday, November 21, 2002 5:57:19 pm | by JohnMcPherson | Revert |
@@ -1,27 +1,13 @@
-[Acronym] for __P__ermenant __V__irtual __C__ircuit
+An
[Acronym] for
-A connection-oriented circuit that may be set up by software between any two nodes of a switched network.
+;; %%% __P__ermenant __V__irtual __C__ircuit :
A connection-oriented circuit that may be set up by software between any two nodes of a switched network.
+;; %%% __P__oly__V__inyl __C__hloride : A plastic composed of 43% of oil products and 57% of salt as raw material. Its raw materials are less exhaustible and energy intensive than those of any other plastic or many 'classic' materials, which makes it excellent for sustainable development. [PVC] has an extremely wide range af applications, from toys via (waste) water lines to bloodbags. [PVC] is a long organic chain molecule built by combining shorter chain molecules. Each chain has an alcohol group at one end (COOH) and an ammonia (NH2) group at the other. By dropping an H on the NH2 side of one molecule and the OH on the COOH side, you get an even longer chain molecule and a water molecule (H20). This type of link is called a ''peptide bond''
.
-----
-and also
__P
__oly
__V
__inyl
__C
__hloride
+ H - N - (rest) -
__C = O
__
__H - N
__ - (rest) - C = O
+ |
__|__ + __|__ | =
+ H __OH__ __H
__ OH
-A plastic composed of 43% of oil products and 57% of salt as raw material.
-
-Therefore it uses less exhaustible raw materials and less energy than any other plastic or many 'classic' materials.
-This makes it excellent for sustainable development. [PVC] has an extremely wide range af applications, from toys via (waste) water lines to bloodbags.
-
-Oh oh! I know this one!%%%
-<Chemistry>%%%
-PVC is basically a long chain of organic molecules. (Organic simply means carbon
-based). The molecules have an alcohol group at one end
(COOH
) and an ammonia (NH2) group at the other:
- H
- N (rest of molecule
) - C = O
- |
|
- H
OH
-
-They join together; the N drops an
H and the C drops the OH. These form a water molecule (H20). This type of link is called a ''peptide bond''.
-
- ...(rest1) - C - N - (rest2)...
- ||
- O
-</Chemistry>%%%
-I know you really don't care, but I haven't done this stuff since first year, and it was fun....
+ H - N
- (rest
) - __C
- N__ -
(rest) - C = O O - H
+ | __∥ |__ | +
|
+ H __O H__
OH
H
