CN1053203C - 聚亚芳基醚－聚有机基硅氧烷共聚物 - Google Patents

聚亚芳基醚－聚有机基硅氧烷共聚物 Download PDF

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CN1053203C
CN1053203C CN94117386A CN94117386A CN1053203C CN 1053203 C CN1053203 C CN 1053203C CN 94117386 A CN94117386 A CN 94117386A CN 94117386 A CN94117386 A CN 94117386A CN 1053203 C CN1053203 C CN 1053203C
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arylene ether
organopolysiloxane
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M·L·布洛罗
S·B·布朗
G·T·西格
P·P·安德逊
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08L71/12—Polyphenylene oxides
    • C08L71/126—Polyphenylene oxides modified by chemical after-treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10S525/905—Polyphenylene oxide

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Abstract

提供聚亚芳基醚-聚有机基硅氧烷共聚物，在其各嵌段之间有胺或酯连接键，它是由环氧、羧基或胺官能化的聚亚芳基醚与环氧、羧基或胺官能化的聚有机基硅氧烷经过熔融挤塑而成。

Description

聚亚芳基醚-聚有机基硅氧烷共聚物
本案是与RD-22547共同申请之申请案。
本发明涉及聚亚芳基醚-聚有机基硅氧烷共聚物。该聚合物具有嵌段之间的胺或酯连接基团。
如Shea等的US4814392所指出，聚硅氧烷-聚亚芳基醚嵌段共聚物可以由氨基封端的聚有机基硅氧烷与酸酐官能化的聚亚芳基醚进行反应而制备。可以在下述(1)和(2)之间进行反应。(1)是指应用诸如偏苯三酸酐酰氯(TAAC)或马来酸酐(MA)官能化的聚亚苯基醚(PPE)，(2)是指胺封端的聚二有机基硅氧烷。由PPE-TAAC或PPE-MA与该胺封端的聚二有机基硅氧烷反应，优选是在惰性气氛下和在有机溶剂中进行，例如用氯仿。
在共同申请的RD-22547中指出，由酸酐或羧基官能化的PPE与胺官能化的聚有机基硅氧烷反应，可以在反应性共挤塑时采用真空排气而得到促进。应用所述真空排气所制造的聚亚苯基醚-聚有机基硅氧烷共聚物具有由酰亚胺或酰胺键连接到聚有机基硅氧烷嵌段的PPE嵌段。
本发明是基于这样的发现，对于通过双氧化物官能团与胺或羧酸官能团反应而生成聚亚芳基醚-聚有机基硅氧烷嵌段共聚合物，在反应性共挤塑时亦可采用真空排气以促进其形成；其中所说官能团可以位于该聚亚芳基醚或聚有机基硅氧烷的终端位置。所得的聚亚芳基醚-聚有机基硅氧烷嵌段共聚物在各嵌段之间有胺或酯连接基团，而不是酰亚胺或酰胺连接。
本发明提供聚亚芳基醚-聚有机基硅氧烷嵌段共聚物。它是由环氧官能化的聚亚芳基醚与氨基或羧基官能化的聚有机基硅氧烷反应而得，或由环氧官能化的聚有机基硅氧烷和氨基或羧基官能化的聚亚芳基醚反应而成。该聚亚芳基醚-聚有机基硅氧烷共聚物包括(按重量计)80-99.9％的聚亚芳基醚，20-0.1％的聚有机基硅氧烷，并且其聚亚芳基醚嵌段是通过选自下列的二价连接结构单元连接到该聚有机基硅氧烷嵌段上：式中X和Y是单价或二价基团，当X是单价时，Y是二价的；当Y是单价时，X是二价的；并且当X和Y是单价时，它们是羟基；以及当X和Y是二价时，它们是选自下列的基团：
可用于制造聚亚芳醚-聚有机基硅氧烷嵌段共聚物的环氧官能化的聚亚芳基醚在Brown等的US4994531所示出，该文献作为本文参考件，这类物质的制备可通过在自由基引发剂存在下由聚亚芳基醚与含有可聚合环氧基的烯类化合物进行反应。Brown等的US5096976示出另一种方法，将聚亚芳基醚例如PPE与环氧氯三嗪例如二缩水甘油基氯氰脲酸酯进行反应。
按本发明制备具有式(1)连接结构单元的聚亚芳基醚-聚有机基硅氧烷可用的其他官能化的聚亚芳基醚是羧基官能化的聚亚芳基醚，如Chalk等，J.Polymer Sci.Part A-1，7，691-705(1969)和US4654405和4797453所示。也可使用胺官能化的聚亚苯基醚，如US4746708，JP04-80231[92-80231]，CA117-27558(1992)所示者。
本发明优选的官能化聚有机基硅氧烷是下式所示的有机胺官能化的聚有机基硅氧烷，式中R是C1-C4单价烃基或可被最多4个基所取代的C1-C14单价烃基，这4个基可以相同，或是它们的混合物，并且R在相互缩合时是惰性的。R1是C1-C14二价烃基或可被1-4个基所取代的C1-C14二价烃基，或它们的混合物，并且R1在相互缩合时是惰性的。n是平均值在约1-500的整数，优选为5-400。优选R1是C1-C14多亚甲基。
可以由Bluestein的US3047497的方法制备羧基官能化的聚二有机基硅氧烷。
聚亚芳基醚-聚有机基硅氧烷嵌段共聚物亦可由环氧官能化的聚有机基硅氧烷来制备，可采用Eckberg的US4952657和4977198的方法制备。
具有至少一种上述的嵌段内连接结构单元的本发明聚亚芳基醚-聚有机基硅氧烷嵌段共聚物，可以在环氧官能化聚亚芳基醚或环氧官能化聚有机基硅氧烷与由羧基或氨基官能化的聚亚芳基醚或聚有机基硅氧烷进行反应性挤塑而制备时采用真空排气。相关的官能化聚合物之间的反应可以在反应性熔融挤塑条件下进行，温度范围为275-320℃。在相关的官能化聚亚芳基醚与聚有机基硅氧烷进行反应性挤塑时，可采用真空排气，压力范围为约10-500乇(1.33-66.5×103Pa)，优选20-100乇(2.66-13.3×103Pa)。
以下是阐示性但非限定性实施例，所有份数除另指明者外，均为重量基准的。
按Brown等的US 5096979的方法制备环氧-三嗪封端的聚亚苯基醚。所得聚亚苯基醚组合物(后文中称为“官能化PPE”)，是由65％(重量)官能化的聚亚苯醚和未官能化的聚亚苯基醚所组成。该官能化PPE的25℃氯仿中I.V.大约0.41dl/g。应用Henshel混合机，将官能化的PPE的氨基丙基封端的平均嵌段大小约10或约20个二甲基甲硅烷氧基单元的聚二甲基硅氧烷混合成为数种共混物，并且以20mm的Welding Engineers双螺杆、用逆向旋转非互相啮合螺杆的挤塑机进行挤塑。所有共混物都是以475rpm、约6磅/hr(2.7kg/hr)加工量和30-40乇(4-5.3×103Pa)的真空排气条件得到的。后四个机筒段和模头温度设定在295℃，进料喉和第二机筒段设定在65℃，但在操作时实读值约105℃。在30吨Engle塑制机上模制出试验件，其模具温度90℃，模制周期25.5秒，机筒设定温度280℃(后部)、340℃、340℃、340℃(喷嘴)。
按相同方法但不采用真空排气，也制备了聚亚苯基醚-聚二甲基硅氧烷。得到的是一种不内聚的泡沫体，并显示有一些焦烧。
采用真空排气所制备的该共聚物挤塑物很容易成形成为5×1/2×1/16英寸的试验件(127×12.7×1.6mm)。然后将模制的试验件进行UL94平均火焰熄灭时间(FOT)以及V-0和V-1阻燃性能试验，得到以下结果：
                     表1Funct.PPE   PPE   GAPD10   GAPD20   1.6mm模制  UL94FOT  UL94(phr) (phr)  (phr)    (phr)    件外观    平均(秒)-   100    0    0    透明    10.2    V-1-   100    2    0    不透明  3.59    V-050  50     5    0    透明    3.32    V-050  50     2    0    透明    3.15    V-050  50     0    5    半透明  3.13    V-050  50     0    2    半透明  4.81    V-0
除UL94阻燃性能外，还测定了Ohio State University标准的总热量减少(OSU HTOT)和总释烟量减少(OSU STOT)，并与PPE对照件进行比较。结果示于下表，后四项中每一对的第二项是单独制备的平行共混物所测。
                 表2Funct.PPE    PPE    GAPD10    OSU HTOT    OSU STOT(phr)     (phr)    (phr)     减少％     减少％0         100      2        1.0         3.350        50       5        27.7        46.350        50       5        15.0        16.950        50       2        28.8        43.850        50       2        30.9        41.6关于机械性能的评价，见表3。
                表3PPE    Funct.  GAPD10    缺口艾佐德    挠曲模量  拉力(phr)  PPE(phr)  (phr)    冲击(ft.lb/in)  (kpsi)  伸长率-     100   0    0.52    394    30.550    50    5    1.07    337    17.250    50    2    0.52    359    23.4
虽然上列实施例仅针对本发明的众多聚亚芳基醚-聚有机基硅氧烷嵌段共聚物的一小部分，不言而喻，本发明是针对更广泛品种的，正如说明书中所提到的那些范围。

Claims (6)

1.聚亚芳基醚-聚有机基硅氧烷共聚物，它是由环氧官能化的聚亚芳基醚与氨基或羧基官能化的聚有机基硅氧烷反应而得，或由环氧官能化的聚有机基硅氧烷和氨基或羧基官能化的聚亚芳基醚反应而成，该聚亚芳基醚-聚有机基硅氧烷共聚物包括(按重量计)80-99.9％的聚亚芳基醚，20-0.1％的聚有机基硅氧烷，并且其聚亚芳基醚嵌段是通过选自下列的二价连接结构单元连接到该聚有机基硅氧烷嵌段上：
Figure C9411738600021
式中X和Y是单价或二价基团，当X是单价时，Y是二价的；当Y是单价时，X是二价的；并且当X和Y是单价时，它们是羟基；以及当X和Y是二价时，它们是选自下列的基团：
Figure C9411738600022
2.按权利要求1的聚亚芳基醚-聚有机基硅氧烷共聚物，其中的聚亚芳基醚是聚亚苯基醚。
3.按权利要求1的聚亚芳基醚-聚有机基硅氧烷共聚物，其中的聚有机基硅氧烷嵌段是聚二甲基硅氧烷。
4.按权利要求1的共聚物，它是由环氧-三嗪封端的聚亚芳基醚进行熔融挤塑而得到的。
5.按权利要求1的共聚物，它是由官能化的聚亚芳基醚与氨基有机基封端的聚二有机基硅氧烷进行熔融挤塑而得到的。
6.一种聚亚芳基醚-聚二有机基硅氧烷共聚物，它是由一种环氧-三嗪封端的聚亚芳基醚与一种羧基官能化的聚二有机基硅氧烷进行反应而得到的。
CN94117386A 1993-10-21 1994-10-21 聚亚芳基醚－聚有机基硅氧烷共聚物 Expired - Lifetime CN1053203C (zh)

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ES2133495T3 (es) 1999-09-16
EP0649875B1 (en) 1999-07-28
DE69419692T2 (de) 2000-03-16
US5385984A (en) 1995-01-31
JP3084191B2 (ja) 2000-09-04
JPH07196812A (ja) 1995-08-01
EP0649875A1 (en) 1995-04-26
CN1111256A (zh) 1995-11-08
DE69419692D1 (de) 1999-09-02

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