polymer
Let an agent explain polymers and their structure-property relationships, identify polymer types and applications, and address recycling, safety and environmental questions.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Science Polymer structure.
Structure
Chains and bonding.
Structure
Structure.
- How does the chain structure, crystallinity and cross-linking of this polymer determine its properties? definition
- How is it synthesised? provenance
Classes
Kinds of polymer.
Classes
Classes.
- Is this polymer a thermoplastic, thermoset, elastomer or biopolymer, and what does that imply? definition
- Which entry fits the specific polymer? action
Use Applications.
Select
Material selection.
Select
Selection.
- Which polymer suits this application, considering strength, temperature, chemical resistance and cost? action
- Which standards specify it? provenance
Identify
Identifying plastics.
Identify
Identification.
- Which polymer is this object made of, based on codes, markings or simple tests? provenance
- Is it safe for food contact? provenance
Environment Waste and pollution.
Recycle
Recycling.
Recycle
Recycling.
- Can this polymer be recycled here, and how should it be sorted? provenance
- Which polymers are hard to recycle? provenance
Pollution
Plastic pollution.
Pollution
Pollution.
- What does research say about plastic pollution and microplastics? provenance
- Which policies address them, with positions attributed? boundary
Learn Study.
History
History of polymers.
History
History.
- How did polymer science and the plastics industry develop, according to historians? provenance
- Which discoveries were key? provenance
Teach
Teaching.
Teach
Teaching.
- How can polymers be taught with models and safe demonstrations? action
- Which misconceptions arise? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.MAT
What it is Filled
A substance composed of very large molecules made of many repeating subunits, including natural polymers such as proteins, cellulose, rubber and DNA and synthetic polymers such as polyethylene, nylon and silicones; polymers form plastics, fibres, elastomers, coatings and gels, and their production, use and disposal raise environmental issues.
Why it exists Filled
Let an agent explain polymers and their structure-property relationships, identify polymer types and applications, and address recycling, safety and environmental questions.
Distinguishing features Filled
- Repeating units
- Very high molecular mass
- Natural or synthetic
- Tunable properties
What robots and AI may and may not do Filled
Must not
- Recommend heating or burning polymers in ways that release toxic fumes.
- Describe a plastic as safe for food or medical contact without its certification.
- Make biodegradability or recyclability claims a material does not meet.
- Advise disposal of polymer waste into water or open land.
Only with a human decision
- Choosing materials for food, medical or structural use.
May
- Explain polymer structure, types and uses.
- Identify plastics by resin codes and advise on recycling routes stated by local rules.
Moral aspects Filled
- Plastic waste persists in the environment and harms wildlife and people.
- Misleading green claims mislead buyers and delay real solutions.
Who is affected
- Consumers
- Wildlife and ecosystems
- Workers in plastics recycling
Owners Filled
Steward
The producer or holder of a polymer product answers for it; nobody owns the class of substances.
Links to other meta-models Filled
parent
- Q169336 - registry parent class
- Q214609 - registry parent class
related
- material - category
- mixture - category
- peptide - natural polymers
- materials science - field
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.polymer
- Wikidata: Q81163 (https://www.wikidata.org/wiki/Q81163)
- resin identification code: 1 to 7 recycling code
Direct properties required Filled
- Density: kg/m3 - Measured as mass per unit volume at a stated temperature and with moisture content and porosity documented.
- Number-average molar mass: g/mol - Determined using a suitable analytical method such as size-exclusion chromatography with the calibration and averaging convention stated.
- Glass transition temperature: degC - Determined for an applicable amorphous phase by thermal or mechanical analysis with the method and conditioning stated.
- Tensile modulus: MPa - Determined for a solid specimen from its tensile stress-strain response under stated temperature, moisture and loading conditions.
Recognition required Filled
- Long-chain molecules
- Plastic, rubbery or fibrous materials
- Small molecules and metals are not polymers
- Plastics, fibres, rubbers, films and gels.
Capabilities and actions required Filled
- explain polymer structure and properties
- identify polymer types
- support material selection
- explain recycling and environmental issues
Hazards and failure modes required Filled
- Plastic pollution and microplastics
- Degradation and failure in service
- Toxic additives
Standards and interfaces required Filled
- Plastics and polymer standards such as ISO 1043
- Regulations on single-use plastics and packaging
- Food contact material rules
Context of use required Filled
- Materials, biology and industry.
- thermoplastics
- thermosets
- elastomers
- natural polymers and biopolymers
- specialty polymers such as conductive polymers
Sources Filled
- Wikidata item Q81163: polymer - identity and sense of the item
- Wikipedia: Polymer - general description of the item
Open questions
- Should each polymer class be a separate entry?
- How should property databases be linked?
- How should recycling rules be localised?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q81163/spec.json