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Merck
모든 사진(3)

주요 문서

331651

Sigma-Aldrich

Polystyrene

average Mw 35,000

동의어(들):

PS

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About This Item

Linear Formula:
[CH2CH(C6H5)]n
CAS Number:
MDL number:
UNSPSC 코드:
12162002
PubChem Substance ID:
NACRES:
NA.23

양식

beads or pellets

Quality Level

분자량

average Mw 35,000

전이 온도

softening point (ASTM E 28) 123-128 °C

density

1.06 g/mL at 25 °C

InChI

1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2

InChI key

PPBRXRYQALVLMV-UHFFFAOYSA-N

유사한 제품을 찾으십니까? 방문 제품 비교 안내

일반 설명

Polystyrene is a high molecular weight synthetic polymer made from the polymerization of styrene. It is durable, thermoplastic, and hydrophobic in nature.

애플리케이션

Polystyrene(PS) can be used as a precursor to synthesize dye-doped fluorescent PS nanoparticles, which can be applied in the field of optical microscopy, cell tracking, and optical sensors.

It can be used to stabilize the perovskite component by forming PS-capped perovskite grains. This PS coverage can suppress the organic component evaporation, and water corrosion and promotes crystal self-healing of perovskite films.

Due to its optical clarity, low production cost, and ease ofmanufacture, it is widely used as a fundamental substrate for in vitrocell culture.

특징 및 장점

  • Thermal efficiency
  • Durability
  • Moisture resistance

물리적 형태

Bimodal.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Hiroyuki Yanagisawa et al.
Molecules (Basel, Switzerland), 23(4) (2018-03-23)
This study was conducted with the aim of achieving the simultaneous screening of various additives in polymer materials by utilizing a solvent-free pyrolyzer/thermal desorption gas chromatography mass spectrometry (Py/TD-GC-MS) method. As a first step to achieve this goal, simultaneous screening
Jelena Stanković et al.
Environmental pollution (Barking, Essex : 1987), 262, 114248-114248 (2020-03-15)
The effect of microplastics (MP) exposure on the chironomid species Chironomus riparius Meigen, 1804 was investigated using the OECD sediment and water toxicity test. Chironomid larvae were exposed to an environmentally relevant low microplastics concentration (LC), a high microplastics concentration
Ji Yeon Ahn et al.
Journal of chromatography. A, 1217(24), 3876-3880 (2010-05-05)
The separation efficiencies of three different asymmetrical flow field-flow fractionation (AF4) channel designs were evaluated using polystyrene latex standards. Channel breadth was held constant for one channel (rectangular profile), and was reduced either linearly (trapezoidal profile) or exponentially (exponential profile)
M Jönsson-Niedziółka et al.
Lab on a chip, 11(3), 490-496 (2010-11-26)
Environmental air monitoring is of great interest due to the large number of people concerned and exposed to different possible risks. From the most common particles in our environment (e.g. by-products of combustion or pollens) to more specific and dangerous
Megan Farrell et al.
Colloids and surfaces. B, Biointerfaces, 81(2), 468-475 (2010-08-31)
Dextran and polyethylene glycol (PEG) are often covalently bound to the surface of polydimethylsiloxane (PDMS) for the purpose of modifying its hydrophilicity and biocompatibility. In this work, the effects of the dextran and PEG on the morphology, wetting, and surface

질문

1–3 / 3 질문  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 답변
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 답변
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. What is the number molecular weight of this polystyrene? Do you have a GPC cromatogram of this polystyrene?

    1 답변
    1. This product has an approximate molecular weight of 35,000. In regards to the GPC Chromatogram, please navigate to the link https://www.sigmaaldrich.com/techservice, click on "Product Technical Inquiries" under the Products Section with all the required information so that a member of the Technical Service team can reach out to assist further. Thank you.

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