1,4-シクロヘキサンジメタノール (cis-, trans-混合物)

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

  H318：重篤な眼の損傷

• 注意書き

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

1,4-シクロヘキサンジメタノール (cis-, trans-混合物) 価格

1,4-シクロヘキサンジメタノール (cis-, trans-混合物) 化学特性,用途語,生産方法

• 外観

  白色/無色～ほとんど白色/ほとんど無色粉末～塊～透明液体

• 溶解性

  水、エタノール及びアセトンに溶ける。

• 用途

  有機合成原料。

• 化学的特性

  1,4-cyclohexanedimethanol is a white waxy solid or clear colourless viscous liquid after melting. Melting point 43°C(cis), 70°C (trans). The sublimation temperature is 160°C, miscible with water and alcohol, soluble in ketone, almost insoluble in aliphatic hydrocarbon and ether.

• 特性

  1,4-Cyclohexanedimethanol (CHDM) is both hard and flexible, with high TG, and offers excellent heat stability, good solubility, and good weather resistance. It can enhance the reactivity in polyester compounds, and improve the hydrolytic stability, plasticity, gloss, transparency, printability, and processing ability of the polymer.

• 使用

  1,4-cyclohexanedimethanol is used to make polyester fiber, polyester electrical appliances, unsaturated polyester resins, polyester glaze, polyurethane foam, as well as for the production of lubricants and hydraulic fluids.

• 主な応用

  1,4-Cyclohexanedimethanol is a precursor to polyesters. It is one of the most important co-monomers for production of polyethylene terephthalate (PET), or polyethylene terephthalic ester (PETE). 1,4-Cyclohexanedimethanol has been used in the synthesis of polyketal copolymers. It was used as diol comonomer during the synthesis of polyester-carbonates based on 1,3-propylene-co-1,4-cyclohexanedimethylene succinate.

• 製造方法

  In the first step, proline-catalyzed formal [3+1+2] cycloaddition of formaldehyde, crotonaldehyde, and ethyl acrylate affords ethyl 4-formylcyclohex-3-enecarboxylate (compound 1) by a domino Mannich condensation and Diels–Alder (D–A) process.
  
  synthesis of 1,4-Cyclohexanedimethanol (CHDM) and CHDA from compound 1. Cu-based catalysts have been widely used for the hydrogenation of esters to alcohols. compound 1 can be hydrogenated to CHDM over commercially available Cu/Zn/Al catalyst. Under the optimized reaction conditions (240°C, 4.0 MPa of H2 , 12 h), a high yield (84%) of CHDM was achieved. After taking the optimized yield of compound 1 (91%) into account in the first step, the overall yield of CHDM starting from formaldehyde, crotonaldehyde, and ethyl acrylate, reached 76%.

• 一般的な説明

  1,4-Cyclohexanedimethano is extensively used as cross-linking reagent in polymer industry.

• Solubility in water

  Its solubility at 20 ℃ (g in 100 g solvent) in benzene is 1.1, in trichloromethane 5.7, in water 92.0, and in methanol 92.2.

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1,4-シクロヘキサンジメタノール (cis-, trans-混合物) スペクトルデータ(¹HNMR、IR1、MS、Raman)

105-08-8, 1,4-シクロヘキサンジメタノール (cis-, trans-混合物) キーワード