What Is Characteristic of the Process of Step-Growth Polymerization

question 26

Multiple Choice

What is characteristic of the process of Step-Growth Polymerization?
I. In the beginning of the polymerization process, there are many oligomers (an oligomer is made from a few monomers, its chain length is short) .
II. High macromolecular weights are only reached at the very end of the polymerization process.
III. If two bifunctional monomers (e.g. diamine and dicarboxylic acid) are used, slight deviations from 1:1 stoichiometry will prevent high macromolecular weights at the end of the polymerization process.
IV. Polymer chains can grow individually to high macromolecular weight at any time during the polymerization process.

• A) I and II
• B) II and III
• C) I, II and III
• D) II and IV

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Definitions:

Rape Culture

A societal framework that normalizes, trivializes, and perpetuates sexual violence, often by blaming victims and excusing perpetrators.

Victim-Blame

When responsibility for a sexual assault is placed on the victim rather than the perpetrator.

Sexual Assault

Sexual touching or intercourse without consent, accomplished by coercion, manipulation, or either the threat or use of force. The greater the force used or the resulting injury, the more severe the assault.

Trigger

Something that initiates or causes an increase in activity, sometimes specifically referring to causing an emotional or psychological response.