4,4'-bis(2-bromoisobutyryloxy)-1,1'-biphenyl | 465536-11-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4,4'-bis(2-bromoisobutyryloxy)-1,1'-biphenyl
• 英文别名: [4-[4-(2-Bromo-2-methylpropanoyl)oxyphenyl]phenyl] 2-bromo-2-methylpropanoate；[4-[4-(2-bromo-2-methylpropanoyl)oxyphenyl]phenyl] 2-bromo-2-methylpropanoate
• CAS: 465536-11-2
• 化学式: C₂₀H₂₀Br₂O₄
• 分子量: 484.184
• InChiKey: WNIXMFRWZMRVRQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.8
• 重原子数：
  26
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2-溴-2-甲基丙酰溴 、 4,4'-二羟基联苯 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 以1 g的产率得到4,4'-bis(2-bromoisobutyryloxy)-1,1'-biphenyl
  参考文献：
  名称：

  Photoactive Thermoplastic Elastomers of Azobenzene-Containing Triblock Copolymers Prepared through Atom Transfer Radical Polymerization

  摘要：

  Atom transfer radical polymerization (ATRP) was used to prepare a new series of ABA triblock copolymers that are photoactive thermoplastic elastomers. The samples synthesized have the same rubbery midblock of poly(n-butyl acrylate) (PnBA) but differ in the degree of polymerization of the end blocks of a methacrylate-based azobenzene-containing side-chain liquid crystalline polymer (Azo-SCLCP). The coupling between elasticity, liquid crystallinity and photoactivity imparts interesting features to this type of thermoplastic elastomers. When the solution-cast film is stretched at T > T-g of the Azo-SCLCP whose microdomains act as physical cross-links, in contrast to conventional thermoplastic elastomers (such as styrene-butadiene-styrene triblock copolymer) that lose the elasticity, liquid crystalline microdomains can support part of the elastic extension of PnBA chains and, in the same time, deform to result in a long-range orientation of azobenzene mesogens. The liquid crystal orientation is retained in the relaxed film at T < T-g, which creates a thermoplastic elastomer whose glassy microdomains contain oriented azobenzene mesogens. Moreover, the reversible trans-cis photoisomerization of the azobenzene chromophore can be used to modulate the mechanically induced orientation.

  DOI：

  10.1021/ma048995j

文献信息

• Living radical polymerization of halogen-containing and acrylic monomers and the formation of block copolymers therefrom
  申请人：Percec Virgil

  公开号：US20080039601A1

  公开（公告）日：2008-02-14

  Acrylic polymers are made by the living radical polymerization of acrylic monomers utilizing organo halide initiators with either metal-free or metal catalysts. Moreover, block copolymers of vinyl halide monomers and acrylic monomers are described by generally polymerizing either the vinyl halide monomers or acrylic monomers utilizing an organo halide initiator in the presence of either a metal catalyst or a metal-free catalyst and subsequently polymerizing thereon the remaining type of monomer.
• US7345127B2
  申请人：——

  公开号：US7345127B2

  公开（公告）日：2008-03-18
• US7470762B2
  申请人：——

  公开号：US7470762B2

  公开（公告）日：2008-12-30