Micelle
https://openalex.org/C11268172
https://www.wikidata.org/wiki/Q421110
Copolymer
https://openalex.org/C15920480
https://www.wikidata.org/wiki/Q421281
Polystyrene
https://openalex.org/C2777922577
https://www.wikidata.org/wiki/Q146243
Polymer chemistry
https://openalex.org/C188027245
https://www.wikidata.org/wiki/Q750446
Chemistry
https://openalex.org/C185592680
https://www.wikidata.org/wiki/Q2329
Dispersity
https://openalex.org/C11432220
https://www.wikidata.org/wiki/Q1975334
Transmission electron microscopy
https://openalex.org/C146088050
https://www.wikidata.org/wiki/Q744818
Acrylic acid
https://openalex.org/C2780503075
https://www.wikidata.org/wiki/Q324628
Chemical engineering
https://openalex.org/C42360764
https://www.wikidata.org/wiki/Q83588
Vesicle
https://openalex.org/C130316041
https://www.wikidata.org/wiki/Q189206
Morphology (biology)
https://openalex.org/C499950583
https://www.wikidata.org/wiki/Q183252
Aqueous solution
https://openalex.org/C184651966
https://www.wikidata.org/wiki/Q906356
Describing the characteristics of the participants
The sample was representative with respect to gender and …
[INST] Please produce a sentence from the paper. The sentence should not mention the title of the paper, rather it be extracted from the Describing Methods section of the paper.
Please provide one singular full sentence from the paper that serves the function provided, using the example as guidance. Be specific, using relevant terminology from the paper.
Refrain from vague or generic statements. Finally produce a search query in the form of a question targeted towards the knowledge contained therein. 
You must output json with the structure of {'Sentence': sentence, 'Query': query}.
Field: "Polymer chemistry".
Paper: "Direct polymerization of sulfonated poly(arylene ether sulfone) random (statistical) copolymers: candidates for new proton exchange membranes"
Function: "Describing the characteristics of the participants".
Example Sentence: "The sample was representative with respect to gender and …". [/INST]