Repeat unit structure
What Repeat unit structure means in Chemistry A-Level, as defined for OCR.
Definition of Repeat unit structure
Check what you remember
Read the wording for your board, then hide it and explain Repeat unit structure in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The smallest section of a polymer chain that, repeated many times, reproduces the whole structure, shown inside brackets with the continuation bonds crossing the brackets.
Topics that use Repeat unit structure
- Polyesters and polyamides (OCR A-Level)
Related terms
- Acid hydrolysis of esters
- Addition polymerisation
- Amide group formation
- Amide linkage
- Base hydrolysis of esters
- Condensation polymerisation
- Dicarboxylic acid and diol monomers
- Dicarboxylic acid and diol or diamine monomers
Using Repeat unit structure in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge