Why is it that when more radical is added in styrene monomer, the resulting poylstyrene is more brittle?

1 ⤊

Why is it that when more radical is added in styrene monomer, the resulting poylstyrene is more brittle?

2007-03-15 05:38:52 · 2 answers · asked by *yawn* 2 in Science & Mathematics ➔ Chemistry

2 answers

For polystryrene u need only a small quantity of initiator that starts the polymerisation
In the presence of a greater amount of radical a chain shift occurs due to which a polymer with smaller molecular mass and different properties is formed. The reaction is stoped by the presence of radical

2007-03-15 05:43:41 · answer #1 · answered by Anonymous · 1⤊ 0⤋

More cross-links to break if the substance is flexed.

2007-03-15 05:42:53 · answer #2 · answered by Anonymous · 0⤊ 1⤋