题目内容
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[主观题]
Nowadays, all of the polymers are synthesized artificially.
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发布时间：2022-01-07
题目内容
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更多“Nowadays, all of the polymers …”相关的问题
第1题
Saturated molecules-containing more than two functional groups cannot be used to produce polymers.
第2题
Number average molecular weights provide us some information related to ______.
A、Many physical properties
B、Polymerization reactions
C、No
D、No
第3题
The length or size of a polymer molecule can be quantified by ________.
A、The number of repeating units linked together in a polymer chain
B、The degree of polymerization
C、Number-average molecular weight
D、Weight-average molecular weight
第4题
The activity of a growing radical can be destroyed by reaction with _______.
A、Initiator radical
B、Another growing chain radical
C、Transfer reaction from one radical to another
D、None of the above
第6题
Through controlled/living free-radical polymerization (CRP), molecular weight distribution could be narrowed greatly, and PDI could be near to 1.
第7题
In condensation polymerization, two monomers, dimers, trimers, tetramers, or oligomers, can react with each other at any time.
第8题
When the methyl group and H atom are located on opposite sides of the double bond, the polymer is a cis-isomer.
第10题
Viscosity refers to the ability of a material to return to its original, initial size & shape once an external load or force is removed.
