3,3-Bis(methoxyethoxymethyl)oxetane | 117452-94-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧杂环丁烷
• 英文名称: 3,3-Bis(methoxyethoxymethyl)oxetane
• 英文别名: 3,3-bis(2-methoxyethoxymethyl)oxetane
• CAS: 117452-94-5
• 化学式: C₁₁H₂₂O₅
• 分子量: 234.29
• InChiKey: QVBUIFOTVMXGNC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.6
• 重原子数：
  16
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  46.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  乙二醇甲醚 、 钠 、 3,3-双(氯甲基)氧杂环丁烷 在 氯化钠 、 水 、 二氯甲烷 、 magnesium sulfate 作用下， 反应 24.0h， 生成 3,3-Bis(methoxyethoxymethyl)oxetane
  参考文献：
  名称：

  Method of producing thermoplastic elastomers having alternate

  摘要：

  一种制备热塑性弹性体的方法，该热塑性弹性体具有A块和至少一个B块，其中所述A块在约60℃以下的温度下为结晶体，所述B块在约-20℃以上的温度下为非晶体，所述A块均为由氧杂环丙烷及其衍生物和/或四氢呋喃及其衍生物的单体衍生的聚醚，所述方法包括提供在约60℃以下的温度下为结晶体的羟基末端的A块，以及单独提供在约-20℃以上的温度下为非晶体的羟基末端的B块，通过分别使用一种二异氰酸酯对A块和B块进行端基封闭，其中一个异氰酸酯基团对每个块的末端羟基反应活性至少是另一个异氰酸酯基团的5倍，因此更具反应性的异氰酸酯基团倾向于与块的末端羟基反应，留下较不具反应性的异氰酸酯基团自由未反应，将端基封闭的A块和端基封闭的B块以它们预期在热塑性弹性体中存在的计量比混合在一起，并使用具有两个异氰酸酯反应性基团的连接化合物反应该混合物，这些基团足够不受阻碍以与所述端基封闭聚合物的自由异氰酸酯基团反应。

  公开号：

  US04806613A1

文献信息

• Internally-plasticized polyethers from substituted oxetanes
  申请人：Morton Thiokol, Inc.

  公开号：US04764586A1

  公开（公告）日：1988-08-16

  Internally plasticized elastomeric binders for projectile propellants are cured polyethers containing THF, CYMMO plus BMEMO, BEEMO and/or OMMO mer units. The polyethers are fluid at room temperature and are miscible with nitrate ester plasticizers. Propellant binders prepared from these polyethers are curable, have low T.sub.g 's, good mechanical properties, and I.sub.sp 's comparable to PEG-based binders.

  内部塑化的弹丸推进剂弹性粘合剂是由THF，CYMMO加BMEMO，BEEMO和/或OMMO聚合单元组成的固化聚醚。这些聚醚在室温下是流体，并且与硝酸酯塑化剂相溶。从这些聚醚制备的推进剂粘合剂是可固化的，具有低T.sub.g，良好的机械性能和与基于PEG的粘合剂相当的I.sub.sp。
• Method of producing thermoplastic elastomers having alternate
  申请人：Morton Thiokol, Inc.

  公开号：US04806613A1

  公开（公告）日：1989-02-21

  A method of preparing a thermoplastic elastomer having A blocks and at least one B block, wherein said A blocks are crystalline at temperatures below about 60.degree. C. and said B block(s) is amorphous at temperatures above about -20.degree. C., said A blocks each being polyethers derived from monomers of oxetane and its derivatives and/or tetrahydrofuran and its derivatives, the method comprising providing hydroxyl terminated A blocks which are crystalline at temperatures below about 60.degree. C. and separately providing hydroxyl terminated B blocks which are amorphous at temperatures above about -20.degree. C., end-capping said A blocks and said B blocks by separately reacting each of said A blocks and B blocks with a diisocyanate in which one isocyanate moiety is at least about five times as reactive with the terminal hydroxyl groups of each of the blocks as the other isocyanate moiety, whereby the more reactive isocyanate moiety tends to react with terminal hydroxyl groups of the blocks, leaving the less reactive isocyanate moiety free and unreacted, mixing said end-capped A blocks and said end-capped B blocks together at approximately the stoichiometric ratios that they are intended to be present in the thermoplastic elastomer, and reacting said mixture with a linking compound having two isocyanate-reactive groups which are sufficiently unhindered to react with the free isocyanate groups of said end-capped polymer.

  一种制备热塑性弹性体的方法，该热塑性弹性体具有A块和至少一个B块，其中所述A块在约60℃以下的温度下为结晶体，所述B块在约-20℃以上的温度下为非晶体，所述A块均为由氧杂环丙烷及其衍生物和/或四氢呋喃及其衍生物的单体衍生的聚醚，所述方法包括提供在约60℃以下的温度下为结晶体的羟基末端的A块，以及单独提供在约-20℃以上的温度下为非晶体的羟基末端的B块，通过分别使用一种二异氰酸酯对A块和B块进行端基封闭，其中一个异氰酸酯基团对每个块的末端羟基反应活性至少是另一个异氰酸酯基团的5倍，因此更具反应性的异氰酸酯基团倾向于与块的末端羟基反应，留下较不具反应性的异氰酸酯基团自由未反应，将端基封闭的A块和端基封闭的B块以它们预期在热塑性弹性体中存在的计量比混合在一起，并使用具有两个异氰酸酯反应性基团的连接化合物反应该混合物，这些基团足够不受阻碍以与所述端基封闭聚合物的自由异氰酸酯基团反应。
• SYNTHESIS OF ENERGETIC THERMOPLASTIC ELASTOMERS CONTAINING BOTH POLYOXIRANE AND POLYOXETANE BLOCKS
  申请人：Sanderson Andrew J.

  公开号：US20090088506A1

  公开（公告）日：2009-04-02

  This thermoplastic elastomer is present in a substantially solid state suitable for use as a binder for a propellant, explosive, and/or gas generant of a supplemental restraint system. The thermoplastic elastomer is formed from a composition including A blocks which are crystalline at temperatures below about 75° C. and B blocks which are amorphous at temperatures above about −20° C. The A blocks are derived from oxetane derivatives and the B blocks are derived from oxiranes and derivatives thereof. The A blocks and B blocks are end-capped with a diisocyanate having a first isocyanate moiety that is substantially more reactive with the terminal groups of the blocks than the second isocyanate moiety, whereby the more reactive first isocyanate moiety is capable of reacting with the terminal groups of the blocks, leaving the less reactive second isocyanate moiety free and unreacted. The end-capped A blocks and the end-capped B blocks are linked together with a linking compound having two isocyanate-reactive groups which are sufficiently unhindered to react with the free and unreacted isocyanate moieties of the end-capped polymers.

  这种热塑性弹性体在实质上固态存在，适用于作为辅助约束系统的推进剂、爆炸物和/或气体发生剂的粘合剂。该热塑性弹性体由一种组合物形成，其中A块在约75°C以下的温度下具有结晶性，而B块在约−20°C以上的温度下是非晶态的。A块源自氧杂环丙烷衍生物，而B块源自环氧烷及其衍生物。A块和B块的端基被二异氰酸酯端基化，其第一个异氰酸酯基团与块的端基相比，反应性更高，因此更具有反应性，能够与块的端基反应，留下较不反应的第二个异氰酸酯基团自由而未反应。端基化的A块和端基化的B块通过一种链接化合物连接在一起，该链接化合物具有两个异氰酸酯反应基团，这些反应基团足够不受阻碍地与端基化聚合物的自由未反应的异氰酸酯基团反应。
• Method of producing thermoplastic elastomers having alternate crystalline structure for use as binders in high-energy compositions
  申请人：THIOKOL CORPORATION

  公开号：EP0335499A2

  公开（公告）日：1989-10-04

  A method is provided for synthesizing block polymers which are thermoplastic elastomers. The thermoplastic elastomers are useful as binders in high-energy compositions, such as propellants, explosives, gasifiers or the like. The block polymers have both (A) and (B) blocks; the A blocks being crystalline at temperatures below 60°C and the B blocks being amorphous at temperatures above -20°C. Both the A and B blocks are polyethers formed from monomers of oxetanes and/or tetrahydrofuran. To prepare the block polymers, the (A) and (B) blocks are separately prepared and separately end-capped by reacting each block with a diisocyanate in which one of the isocyanate moieties is substantially more reactive with the terminal hydroxyl groups of the blocks than the other. Reaction of the more reactive isocyanate moiety with the terminal hydroxyl groups leaves the other isocyanate group free. The end-capped (A) and (B) blocks are mixed and reacted with a short linking compound which has two isocyanate-reactive groups.

  提供了一种合成热塑性弹性体嵌段聚合物的方法。这种热塑性弹性体可用作推进剂、炸药、气化器等高能量成分的粘合剂。嵌段聚合物具有（A）和（B）嵌段；A 嵌段在温度低于 60°C 时为结晶，B 嵌段在温度高于 -20°C 时为无定形。A 嵌段和 B 嵌段都是由氧杂环丁烷和/或四氢呋喃单体形成的聚醚。 为了制备嵌段聚合物，(A)和(B)嵌段分别通过与二异氰酸酯反应来制备和封端。反应性更强的异氰酸酯分子与末端羟基反应后，另一个异氰酸酯基团就会游离出来。将末端封端的（A）和（B）嵌段混合，并与具有两个异氰酸酯反应基团的短链 接化合物反应。
• Tetrafunctional polyethers
  申请人：THIOKOL CORPORATION

  公开号：EP0531591A1

  公开（公告）日：1993-03-17

  Polymers are produced from 4 and 5 member cyclic ethers, which polymers have hydroxyl functionalities of 4. The cyclic ethers are polymerized with an acid catalyst and a tetraol initiator having the general formula:

  用酸催化剂和通式为四羟基引发剂聚合环醚：