Does BMA mean n-butyl methacrylate or isobutyl methacrylate?

In most commercial usage the bare abbreviation means the normal isomer, n-butyl methacrylate, CAS 97-88-1. The branched isomer, isobutyl methacrylate, is a different substance with its own identifiers and a different contribution to copolymer hardness, and the tertiary isomer is different again. Because all three are abbreviated loosely in day-to-day correspondence, an order written as BMA alone is ambiguous. Write the full chemical name and the CAS number on every enquiry, purchase order and goods-inwards record.

Why must the monomer not be blanketed with pure nitrogen?

Because the stabiliser used in commercial methacrylate monomers requires dissolved oxygen to function. It intercepts radicals by a mechanism that consumes oxygen, so a drum stripped of oxygen contains an inhibitor that is chemically present and functionally absent. The correct headspace is air, or air diluted with nitrogen to a specified oxygen content, never an inert blanket. This is one of the very few cases in a chemical store where displacing oxygen makes a material more dangerous rather than less, and it catches people whose instinct is trained on flammable solvents.

How should inhibitor content be read on a certificate?

As a starting condition rather than a permanent property. The certificate reports the inhibitor level at release; that level falls in storage as the stabiliser does its job, and it falls faster in warm conditions, in light and in the presence of contamination. A long-stored drum can meet its original certificate on every other line while having very little inhibitor left. Where storage has been long or uncertain, retest the inhibitor level before charging a reactor rather than relying on the release figure.

What is popcorn polymerisation and why does it matter here?

It is a self-propagating, expanding polymer growth that forms in dead legs, vapour spaces, valve bonnets and residues where inhibitor cannot reach. Once seeded it continues under conditions that would not start a normal polymerisation, and it grows mechanically enough to jam valves and distort equipment. The controls are housekeeping controls: no unswept dead legs, no long-standing residues, no lines left full between campaigns, and clean vessels before refilling. It is not a reason to avoid methacrylate monomers, but it is a reason to design the pipework as if the monomer were reactive, because it is.

How does the butyl ester change a copolymer compared with the methyl one?

The four-carbon ester side chain is flexible and bulky, so it loosens chain packing and lowers the temperature at which the polymer softens. Against the methyl ester it gives a softer, more flexible and more extensible polymer, better adhesion and easier film formation, at the cost of hardness and block resistance. Against the corresponding acrylate it gives a harder polymer with the weathering advantage of the methacrylate backbone. Formulators use it as the soft component of an all-methacrylate system, which keeps the durability while tuning flexibility.

Styreen is een chemische verbinding, geregistreerd onder CAS-nummer 100-42-5. Brutoformule: C8H8. Molaire massa: 104.15 g/mol. IUPAC: styrene.

Wat is het CAS-nummer van Styreen?

Het CAS-nummer van Styreen is 100-42-5 — een unieke identificatie van de Chemical Abstracts Service (CAS).

Wat is de brutoformule van Styreen?

Brutoformule: C8H8. Molaire massa: 104.15 g/mol. logP (XLogP3): 2.9. PSA: 0 Å².

Wat zijn de GHS-gevaren van Styreen?

Volgens de GHS-classificatie moet Styreen worden voorzien van de volgende gevarenaanduidingen: H226 (Ontvlambare vloeistof en damp.), H361d (Podejrzewa się, że działa szkodliwie na dziecko w łonie matki), H332 (Schadelijk bij inademing.), H372 (Veroorzaakt schade aan organen bij langdurige of herhaalde blootstelling.), H315 (Veroorzaakt huidirritatie.).

Waar kan ik Styreen kopen?

Styreen is verkrijgbaar in onze winkel. Bekijk het product: https://epchems.online/products/ethanol/

Waar komen de chemische gegevens voor Styreen vandaan?

De chemische gegevens voor Styreen zijn afkomstig van gezaghebbende bronnen: PubChem (NIH), ChEMBL (EBI). PubChem CID: 7501. Conform de CLP-verordening (EG 1272/2008), beschikbaar onder de CC-BY 4.0-licentie.

Styreen

Styrene

CAS 100-42-5 · C₈H₈ · MW 104.15 g/mol

Over Styreen

Styreen is een chemische verbinding, geregistreerd onder nummer CAS 100-42-5, met de brutoformule C₈H₈, en een molaire massa van 104.15 g/mol.

Het molecuul bevat 16 atomen verbonden door 16 chemische bindingen. De volledige systematische IUPAC-naam van deze verbinding is styrene. Het interactieve 3D-model hierboven toont de ruimtelijke rangschikking van de atomen — u kunt het met de muis draaien, met het scrollwiel inzoomen en schakelen tussen de weergavemodi skelet / Ball & Stick / Space Fill.

Wat de fysisch-chemische eigenschappen betreft, de verdelingscoëfficiënt logP = 2.9 (positieve waarde, lipofiele verbinding), polair oppervlak PSA = 0 Å², 0 donoren en 0 waterstofbrugacceptoren. Deze parameters zijn cruciaal bij de beoordeling van de biobeschikbaarheid en de interactie met biomoleculen.

De chemische gegevens voor deze verbinding zijn afkomstig van PubChem (NIH NLM NCBI), een van de grootste chemische databanken ter wereld. Alle informatie wordt automatisch bijgewerkt en verrijkt met vertalingen van GHS-gevarenaanduidingen conform de CLP-verordening (EG 1272/2008). De bovenstaande widget mag worden gebruikt voor educatieve, onderzoeks- en commerciële doeleinden.

Fysisch-chemische eigenschappen

Wzór sumaryczny	C₈H₈
Masa molowa	104.15 g/mol
IUPAC	styrene
SMILES	`C=CC1=CC=CC=C1`
InChIKey	`PPBRXRYQALVLMV-UHFFFAOYSA-N`
logP (XLogP3)	2.9
PSA	0 Å²
HBD / HBA	0 / 0
PubChem CID	CID 7501 ↗

GHS-veiligheid

Sygnał: Niebezpieczeństwo

GHS02

GHS07

GHS08

H226 — Łatwopalna ciecz i pary

? — H361d

H332 — Działa szkodliwie w następstwie wdychania

H372 — Powoduje uszkodzenie narządów poprzez długotrwałe lub powtarzane narażenie

H315 — Działa drażniąco na skórę

H319 — Działa drażniąco na oczy

Wetenschappelijke literatuur

Literatura naukowa

20 artykułów · 11 open access · Źródła: PubMed, OpenAlex, Semantic Scholar

📈 Timeline publikacji (20 artykułów)

Wysokość słupka = liczba artykułów w roku. Hover dla szczegółów.

Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [Arabic]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [Korean]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [Hatian Creole]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [Spanish]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [French]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [Chinese]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [Vietnamese]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5 [Portuguese]

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Styrene - ToxFAQs\u2122 : CAS#: 100-42-5

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A Morphological Study of Dynamically Vulcanized Styrene-Ethylene-Butylene-Styrene/Styrene-Butylene-Styrene/MethylVinylSilicon Rubber Thermoplastic Elastomer

Chunxu Zhao, Xiaohan Chen, Xian Chen (2022) · Polymers

Cytowania: 4Open AccessDOI ↗PDF ↗

🔓

Chain Length-Regulated Poly(styrene-co-maleic acid)/Lipid Nanostructures for Curcumin Encapsulation.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Synthesis and Comparative Investigation of Ortho-, Meta-, and Para-Carboxyphenylmaleimide-Styrene Copolymers.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Functionalization reactions of styrene and styrene derivatives.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Preparation and Properties of Reprocessable Hydrogenated Styrene-Butadiene Rubber.

(2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Effects of the Physical Recycling of Acrylonitrile-Butadiene-Styrene (ABS) Plastics on the Properties of the Final Product.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Physicochemical Properties and Styrene Migration Potential of Polystyrene Food Packaging

(2026)

Open AccessDOI ↗PDF ↗

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Imidazophenothiazine-based photocatalysts enable the organocatalyzed atom-transfer radical polymerization of styrene.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Asymmetric Isoporous Membranes of 2-Vinylpyridine-Styrene Linear Diblock Copolymers: Fabrication and Evaluation in Water Treatment.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Synthesis of styrene polymer grafted nanocarbon particles for application as reinforcement additive for unsaturated polyester plastics.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

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Role of Polymer Backbone Rigidity on the Solution Properties of Bioderived Poly(styrene-co-maleic anhydride) Derivatives.

et al. (2026)

Open AccessDOI ↗PubMed ↗PDF ↗

Dane z PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary wygenerowane przez Semantic Scholar TLDR. Artykuły z ikoną wymagają płatnego dostępu.

Synoniemen

STYRENE · 100-42-5 · Ethenylbenzene · Phenylethylene · Vinylbenzene · Styrol · Cinnamene · Styrene monomer · Benzene, ethenyl- · Phenylethene · Styrolene · Phenethylene · Vinylbenzol · Styrole · Vinyl benzene

Gegevensbronnen

📊 PubChem CID 7501 — NIH
🔬 NIST WebBook — spektroskopia
🌐 Wikidata
💊 ChEMBL — bioaktywność

Kopen in de winkel

Ethanol →

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