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Unformatted text preview: initiator is a chemical compound that helps start a chemical reaction, such as polymerization. But unlike a catalyst, an initiator is consumed in the reaction. Benzoyl peroxide is an initiator and not a catalyst because it becomes part of the polymer and is consumed in the polymerization reaction. 4. Polymer A and Polymer B are both very viscous solutions, but Polymer B is more viscous than A. This is because Polymer B is the cross-linked polymer and Polymer A is the linear polymer. Polymer B has more polar groups (the oxygen atoms) that increase the dipole dipole interaction between molecules than Polymer A. 5. 6. 7. The gel is soft. It stretches a bit but can be poured or torn easily. It breaks into pieces when I pulled with little force. The gel is very similar to Slime. 8. Slowly, the gel would take the shape of the watchglass....
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This note was uploaded on 04/07/2012 for the course CHEM 1A taught by Professor Nitsche during the Spring '08 term at Berkeley.
- Spring '08