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イソプレン重

イソプレン重 化学構造式
9003-31-0
  • CAS番号.9003-31-0
  • 化学名:イソプレン重
  • 别名:ポリ(イソプレン);イソプレン重;ポリイソプレン;POLY(ISOPRENE-1,4) [MW 〜 70,000]
  • 英語化学名:POLYISOPRENE
  • 英語别名:IR;isoprened;Kraton[R];betapreneh;kinase InsR;NATSYN 2200;NATSYN 2205;NATSYN 2210;POLYISOPRENE;CD220 antigen
  • CBNumber:CB1382840
  • Molecular Formula:C5H8
  • Formula Weight:0
  • MOL File:Mol file
イソプレン重 物理性質
安全性情報
危険有害性情報のコード(GHS)
  • 絵表示(GHS)
  • 注意喚起語Danger
  • 危険有害性情報
  • H226:引火性の液体および蒸気
  • H304:飲み込んで気道に侵入すると生命に危険のおそ れ
  • H315:皮膚刺激
  • H319:強い眼刺激
  • H335:呼吸器への刺激のおそれ
  • H412:長期的影響により水生生物に有害
  • 注意書き
  • P201:使用前に取扱説明書を入手すること。
  • P210:熱/火花/裸火/高温のもののような着火源から遠ざ けること。-禁煙。
  • P261:粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。
  • P280:保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。
  • P308+P313:暴露または暴露の懸念がある場合:医師の診断/手当てを 受けること。
  • P370+P378:火災の場合:消火に...を使用すること。
イソプレン重 価格 もっと(1)
  • メーカー: Sigma-Aldrich Japan
  • 製品番号: 651796
  • 製品説明 : 
  • 純度: Negative photoresist I
  • 包装: 100ml
  • 価格: ¥15600
  • 更新時間: 2021/03/23
  • 購入: 購入

POLYISOPRENE 化学特性,用途語,生産方法

  • 定義 本品は、イソプレンの重合体であり、次の化学式で表される。
  • 解説 ポリイソプレノイドともいう.イソプレン単位が多数鎖状結合した不飽和炭化水素またはアルコールの総称.イソプレン単位が8個のカロテノイド,11個のウンデカプレノール,16~20個のドリコール,100個程度で二重結合がトランス形のグタペルカ,シス形で10000個程度の天然ゴムなどがある.
    森北出版「化学辞典(第2版)
  • 化粧品の成分用途 非水系増粘剤
  • 説明 Polyisoprene is the polymer known as natural rubber, although it can also be manufactured. The natural rubber latex is harvested from the rubber tree, Hevea brasiliensis. This substance has a variety of natural additives, such as proteins and sugars. The polymer from the natural latex is resistant to many solvents and also is easily processed. The synthetic form of this rubber is produced from a pure isoprene solution with a stereospecific isomer to produce the more commonly used cis-l,4 isomer. These rubbers are resistant to abrasion and most solvents and are commercially used in automobile tires, adhesives, and a variety of products that come in close contact with the general public. Their use in baby bottle nipples is a good indication of the extremely low toxicity associated with these elastomers.
    Polyisoprene structure
  • 化学的特性 There are two main solvents for rubber: turpentine and naptha (petroleum). Because rubber does not dissolve easily, the material is finely divided by shredding prior to immersion. Natural rubber has been partially replaced by synthetics, particularly styrene–butadiene, as a generalpurpose rubber. High resilience, low heat buildup, and easy processing are particular advantages of natural rubber when it is often used in blends with synthetic polyisoprene and other elastomers. Natural rubber, alone and in combination with neoprene, has been rated highly for resistance to water, dimethyl sulfoxide, and some alcohols in a comparative test of glove materials; resistance to other solvents varied from good to poor. Polyisoprene supports combustion.
  • 化学的特性 Natural rubber is the name applied to the polymer cis-1,4-polyisoprene obtained chiefly from the 4590 RUBBER, NATURAL latex of the Hevea brasiliensis tree.
  • 使用 Natural rubber is a vital, strategic, and irreplaceable raw material used in enormous quantities by the commercial, medical, transportation, and defense industries. At least 40,000 different products and over 400 medical devices contain natural rubber.
  • 調製方法 The latex of natural rubber is obtained from trees (Hevea brasiliensis); the actual monomer is isopentenyl pyrophosphate that has been formed by biosynthesis. Natural rubber contains low-molecular-weight impurities; small amounts of sugar, fatty acids, proteins, and trace metals all play an important part in processing.
    Depending on the catalyst, rubber may undergo 1,2-; 3,4-; or 1,4- additional polymerization that leads to several isomeric structures.
    Almost all commercial synthetic polyisoprenes are prepared from purified isoprene monomer by a solution process. A stereospecific catalyst, such as an Al–Ti Ziegler type, is required for direct polymerization to the cis-1,4 isomer.
    The production of the finished polymer requires two separate manufacturing processes: (a) formation of the rawpolymer and (b) conversion of the polymer to the finished rubber product. The first step is similar to that of plastic production. Large-scale operations use bulk materials in an enclosed system.
  • 定義 The major component of natural rubber, also made synthetically. Forms are stereospecific cis-1,4and trans-1,4-polyisoprene.Both can be produced synthetically by the effect of heat and pressure on isoprene in the presence of stereospecific catalysts. Nat
  • 工業用途 Rubber is characterized as being a highly elastic or resilient material, and the natural product is obtained mainly as a latex from cuts in the trunks of the Hevea brasiliensis tree. The latex consists of small particles (averaging about 2500 ? units in diameter) of rubber suspended in an aqueous medium (at about 35% solids content). The system also contains about 6 to 8% nonrubber constituents, some of which are emulsifiers, naturally occurring antioxidants, and proteins.
    Natural rubber is used for making many types of articles. Because of its abrasion-resistant quality and low hysteresis in reinforced compounds, it is used in truck-tire tread stocks and in conveyor belts that which are employed in conveying abrasive material such as coal, crushed rock, ore, and cinders. In large tires, it has found application in carcass compounds because of the tack and building qualities of the raw polymer. It has also been used in carcass compounds because of the low heat buildup (low hysteresis) of the carcass compound vulcanizate during severe service conditions in tire usage.
イソプレン重 上流と下流の製品情報
原材料
準備製品
イソプレン重 生産企業
Global(58)Suppliers
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9003-31-0, イソプレン重 キーワード:
  • 9003-31-0
  • 2-Methylbuta-1,3-diene, ol
  • isoprene homopolymer
  • Anti-IR, C-Terminal antibody produced in rabbit
  • Anti-IR antibody produced in rabbit
  • CD220 antigen
  • kinase InsR
  • 1,4-POLYISOPRENE 10'000
  • 1,4-POLYISOPRENE 100'000
  • 1,4-POLYISOPRENE 150'000
  • 1,4-POLYISOPRENE 20'000
  • 1,4-POLYISOPRENE 200'000
  • 1,4-POLYISOPRENE 30'000
  • 1,4-POLYISOPRENE 300'000
  • 1,4-POLYISOPRENE 400'000
  • 1,4-POLYISOPRENE 5'000
  • 1,4-POLYISOPRENE 50'000
  • 1,4-POLYISOPRENE 600'000
  • 1,4-POLYISOPRENE 700
  • 1,4-POLYISOPRENE 70'000
  • 1,4-POLYISOPRENE 800'000
  • TRANS-ISOPRENE POLYMER
  • CIS-ISOPRENE POLYMER
  • 1,3-Butadiene, 2-methyl-, homopolymer
  • 1,3-Butadiene,2-methyl-,homopolymer
  • POLYISOPRENE, CIS, AVERAGE MW CA. 800,00 0 (GPC)
  • 1,4-POLYISOPRENE STANDARD 2'000
  • 1,4-POLYISOPRENE STANDARD 150'000
  • 1,4-POLYISOPRENE STANDARD 20'000
  • 1 4-POLYISOPRENE STANDARD 800'000 STAB.
  • 1,4-POLYISOPRENE STANDARD 30'000
  • ポリ(イソプレン)
  • イソプレン重
  • ポリイソプレン
  • POLY(ISOPRENE-1,4) [MW 〜 70,000]