2,3,5-三氟-1,4-苯二酚 | 654-37-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 中文名称: 2,3,5-三氟-1,4-苯二酚
• 英文名称: 2,3,5-Trifluor-hydrochinon
• 英文别名: 1,4-Benzenediol, 2,3,5-trifluoro-；2,3,5-trifluorobenzene-1,4-diol
• CAS: 654-37-5
• 化学式: C₆H₃F₃O₂
• 分子量: 164.084
• InChiKey: QGPNCAAQXZRRMR-UHFFFAOYSA-N

物化性质

• 熔点：
  112-113 °C
• 沸点：
  224.4±35.0 °C(Predicted)
• 密度：
  1.658±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• 海关编码：
  2908199090

反应信息

• 作为反应物：
  描述：

  2,3,5-三氟-1,4-苯二酚 在 magnesium sulfate 、 lead dioxide 作用下， 以 乙醚 为溶剂， 生成 2,3,5-Trifluorchinon
  参考文献：
  名称：

  Tetra- and tri-fluoro-p-benzoquinone

  摘要：

  DOI：

  10.1016/s0040-4020(01)93328-9
• 作为产物：
  描述：

  1-H-heptafluoro-1,4-cyclohexadiene 生成 2,3,5-三氟-1,4-苯二酚
  参考文献：
  名称：

  Tetra- and tri-fluoro-p-benzoquinone

  摘要：

  DOI：

  10.1016/s0040-4020(01)93328-9

文献信息

• Process for the preparation of halogenated (meth)acrylic esters and poly (meth) arcylates obtained with said (meth)acrylic esters
  申请人：Akzo Nobel N.V.

  公开号：EP0824096A2

  公开（公告）日：1998-02-18

  The present invention is directed to a process for the preparation of (meth)acrylates of halogenated alcohols by direct esterification of said alcohols with (meth)acrylic acid (chloride) wherein at least 2,6-substituted pyridine derivative is used as a polymerization inhibitor at room temperature or lower. Suitable at least 2,6-substituted pyridine derivatives are 2,6-lutidine, 2,4,6-collidine or 2,6-di-tert.butyl-4-methyl pyridine. With the halogenated (meth)acrylate esters prepared with the process according to the invention, very pure homo- and copolymers can be prepared, resulting in polymers having a low optical loss of 0.1 dB/cm or lower at 1300 nm and lower than 0.4 dB/cm at 1550 nm.

  本发明涉及一种通过将卤代醇与（甲基）丙烯酸（氯化物）直接酯化来制备（甲基）丙烯酸酯的方法，其中至少使用一种2,6-取代吡啶衍生物作为聚合抑制剂，温度为室温或更低。适用的至少2,6-取代吡啶衍生物包括2,6-吡啶、2,4,6-考林或2,6-二叔丁基-4-甲基吡啶。 通过根据本发明的方法制备的卤代（甲基）丙烯酸酯，可以制备非常纯净的同聚物和共聚物，从而得到在1300纳米处光学损耗低至0.1 dB/cm或更低，在1550纳米处低于0.4 dB/cm的聚合物。
• MODIFIER FOR AROMATIC POLYESTER AND AROMATIC POLYESTER RESIN COMPOSITION COMPRISING THE SAME
  申请人：TABATA Masayoshi

  公开号：US20110224343A1

  公开（公告）日：2011-09-15

  The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): —Ar—W 1 x —Ar— and by Formula (II): —Ar—, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III): and monovalent residues represented by Formula (IV): —O—C(O)—R 7 —.

  本发明提供了一种用于芳香族聚酯的改性剂，可以增强芳香族聚酯的熔融流动性，而不明显降低芳香族聚酯的耐热性，以及包括该改性剂的芳香族聚酯树脂组合物。本发明涉及一种用于芳香族聚酯的改性剂，包括多羟基酚残基和芳香族多羧酸、酸卤或其酸酐残基，该改性剂包括具有以下结构的材料：第一残基，选择自由式(I)所代表的二价残基：—Ar—W1x—Ar—和自由式(II)所代表的：—Ar—，第一残基与选择自由式(III)所代表的单价残基：和自由式(IV)所代表的单价残基：—O—C(O)—R7—的两个相同或不同的第二残基结合。
• AROMATIC POLYESTER
  申请人：Muroran Institute of Technology

  公开号：EP2479203A1

  公开（公告）日：2012-07-25

  The present invention provides an aromatic polyester which is substantially free from the occurrence of coloration and retains significantly high transparency even after being thermally processed at high temperature and which has high flowability. The aromatic polyester contains a polyhydric phenol residue and a residue of any one of aromatic polycarboxylic acid, halide thereof, and anhydride thereof, and terminals of the aromatic polyester have a structure represented by the formula -C(O)-R. The aromatic polyester has an end-capping rate of 90% or higher and a weight average molecular weight (Mw) ranging from 3,000 to 1,000,000.

  本发明提供了一种芳香族聚酯，该聚酯基本上不会发生着色，即使在高温热加工后仍能保持明显的高透明度，并且具有高流动性。芳香族聚酯含有多羟基苯酚残留物和芳香族多羧酸、其卤化物和其酸酐中任意一种的残留物，芳香族聚酯的端基具有式 -C(O)-R 所代表的结构。芳香族聚酯的端盖率为 90% 或更高，重量平均分子量（Mw）为 3,000 至 1,000,000 之间。
• POLYURETHANE, POLYURETHANE PRODUCTION METHOD, CONDUCTIVE PASTE COMPOSITION, CONDUCTIVE WIRE, AND METHOD FOR PRODUCING CONDUCTIVE WIRE
  申请人：Shin-Etsu Chemical Co., Ltd.

  公开号：EP4001336A1

  公开（公告）日：2022-05-25

  A polyurethane contains a weakly acidic functional group having a pKa of 5 to 11. Thus, the present invention provides: a conductive paste composition for forming a stretchable conductive wire which varies slightly in electric conductivity at the time of elongation and shrinkage; and a polyurethane for providing the composition.

  聚氨酯含有 pKa 值为 5 至 11 的弱酸性官能团。因此，本发明提供了：一种用于形成可拉伸导电线的导电浆料组合物，该导电浆料组合物在拉伸和收缩时导电率略有不同；以及一种用于提供该组合物的聚氨酯。
• Ethylened polymer and molded object obtained therefrom
  申请人：Satoh Yasuo

  公开号：US20060135712A1

  公开（公告）日：2006-06-22

  An ethylene-based polymer which is an ethylene/C4 to C10 α-olefin copolymer and satisfies the following requirements [k1] to [k3]: [k1] melt flow rate (MFR) under a loading of 2.16 kg at 190° C. is in the range of 1.0 to 50 g/10 minutes; [k2] LNR defined as a scale of neck-in upon film molding is in the range of 0.6 to 1.4; and [k3] take-up speed at break [DS (m/min)] at 160° C. and melt flow rate (MFR) satisfy the following relationship (Eq-1): 12×MFR 0.577 ≦DS≦165×MFR 0.577 (Eq-1), and a thermoplastic resin composition containing the ethylene-based polymer, provide a molded product, preferably a film, excellent in moldability and mechanical strength. The ethylene-based polymer can be efficiently obtained by polymerization in the presence of an olefin polymerization catalyst formed from a solid carrier, (A) a solid transition metal catalyst component obtained by contacting (a) a compound of a transition metal of the group 4 in the periodic table, containing at least one ligand having a cyclopentadienyl skeleton, (b) an organoaluminum oxy compound, (c) a multifunctional organic halide, and if necessary (d) an organoaluminum compound, and if necessary (B) organoaluminum compound.

  一种乙烯基聚合物，它是一种乙烯/C4 至 C10 α-烯烃共聚物，并满足以下[k1]至[k3]的要求：[k1] 熔体流动速率（MFR）在 190 摄氏度、负载 2.16 千克的条件下，范围在 1.0 至 50 克/10 分钟之间；[k2] LNR 定义为薄膜成型时的缩颈比例，范围在 0.6 至 1.4 之间；以及 [k3] 160 摄氏度时的断裂收口速度[DS（米/分）]和熔体流动速率（MFR）满足以下关系式（公式-1）：12×MFR 0.577 ≦DS≦165×MFR 0.577 (式-1），以及含有乙烯基聚合物的热塑性树脂组合物，可提供模塑产品，最好是薄膜，具有优异的模塑性和机械强度。乙烯基聚合物可通过在由固体载体、(A)固体过渡金属催化剂组分、(B)有机铝氧化合物、(C)多功能有机卤化物和必要时(D)有机铝化合物以及必要时(B)有机铝化合物形成的烯烃聚合催化剂存在下进行聚合而有效地获得。

表征谱图