JP2006052416A5 - - Google Patents

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JP2006052416A5
JP2006052416A5 JP2005314943A JP2005314943A JP2006052416A5 JP 2006052416 A5 JP2006052416 A5 JP 2006052416A5 JP 2005314943 A JP2005314943 A JP 2005314943A JP 2005314943 A JP2005314943 A JP 2005314943A JP 2006052416 A5 JP2006052416 A5 JP 2006052416A5
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aromatic polycarbonate
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エステル交換法により得られる粘度平均分子量１６，０００以上の芳香族ポリカーボネートであって、ゲルパーミエイションクロマトグラフィーにより測定したポリスチレン換算の重量平均分子量（Ｍｗ）と数平均分子量（Ｍｎ）との比（Ｍｗ／Ｍｎ）が２．８〜４．５の範囲内であり、一般式（１）で表される構造単位１モルに対する分岐構造単位の合計モル数の比が０．３ｍｏｌ％を越え０．９５ｍｏｌ％以下であることを特徴とする芳香族ポリカーボネート。
（式（１）中、Ｘは、単結合、炭素数１〜８のアルキレン基、炭素数２〜８のアルキリデン基、炭素数５〜１５のシクロアルキレン基、炭素数５〜１５のシクロアルキリデン基又は、−Ｏ−，−Ｓ−，−ＣＯ−，−ＳＯ−，−ＳＯ２−で示される２価の基からなる群から選ばれるものである。） It is an aromatic polycarbonate having a viscosity average molecular weight of 16,000 or more obtained by the transesterification method, and the ratio of weight average molecular weight (Mw) to number average molecular weight (Mn) in terms of polystyrene measured by gel permeation chromatography Mw / Mn) is in the range of 2.8 to 4.5, and the ratio of the total number of moles of branched structural units to 1 mol of the structural units represented by the general formula (1) exceeds 0.3 mol%. An aromatic polycarbonate characterized in that it is 95 mol% or less.
(In the formula (1), X represents a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms Or a group selected from the group consisting of divalent groups represented by -O-, -S-, -CO-, -SO-, -SO 2- ). エステル交換法により得られる粘度平均分子量１６，０００以上の芳香族ポリカーボネートであって、下記式（２）で算出される粘度平均分子量（Ｍｖ）と分子総末端数から算出される数平均分子量（Ｍｎ’）との比（Ｍｖ／Ｍｎ’）が１．８〜３．５の範囲内であり、一般式（１）で表される構造単位１モルに対する分岐構造単位の合計モル数の比が０．３ｍｏｌ％を越え０．９５ｍｏｌ％以下であることを特徴とする芳香族ポリカーボネート。
（式（２）中、ηｓｐはポリカーボネート樹脂の塩化メチレン溶液について２０℃で測定した比粘度であり、Ｃはこの塩化メチレン溶液の濃度である。塩化メチレン溶液としては、ポリカーボネート樹脂の濃度０．６ｇ／ｄｌのものを用いる。） It is an aromatic polycarbonate having a viscosity average molecular weight of 16,000 or more obtained by the transesterification method, and a number average molecular weight (Mn) calculated from the viscosity average molecular weight (Mv) calculated by the following formula (2) and the number of all molecular terminals The ratio of (Mv / Mn ') to') is in the range of 1.8 to 3.5, and the ratio of the total number of moles of branched structural units to 1 mol of the structural unit represented by the general formula (1) is 0 .3. An aromatic polycarbonate characterized by more than 3 mol% and not more than 0.95 mol%.
In the formula (2), η sp is a specific viscosity measured at 20 ° C. for a methylene chloride solution of a polycarbonate resin, C is the concentration of this methylene chloride solution. Use the one of 6g / dl.) 上記分岐構造単位が一般式（３）〜（６）で表されることを特徴とする請求項１又は２に記載の芳香族ポリカーボネート。
（式（３）〜（６）中、Ｘは、単結合、炭素数１〜８のアルキレン基、炭素数２〜８のアルキリデン基、炭素数５〜１５のシクロアルキレン基、炭素数５〜１５のシクロアルキリデン基又は、−Ｏ−，−Ｓ−，−ＣＯ−，−ＳＯ−，−ＳＯ２−で示される２価の基からなる群から選ばれるものである。） The aromatic polycarbonate according to claim 1 or 2, wherein the branched structural unit is represented by any one of formulas (3) to (6).
(In the formulas (3) to (6), X represents a single bond, an alkylene group having 1 to 8 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, 5 to 15 carbon atoms And R 1 is selected from the group consisting of a divalent group represented by -O-, -S-, -CO-, -SO-, -SO 2- . 下記式（７）においてαで表される値が０．０３〜０．３の範囲であることを特徴とする請求項１乃至３のいずれかに記載の芳香族ポリカーボネート。
（但し、式（７）中、αは分子終端が分岐単位である確率を表し、ｐはｎ個の連鎖が生成する確率を表し、ρは分岐単位数を表す。） The aromatic polycarbonate according to any one of claims 1 to 3, wherein the value represented by α in the following formula (7) is in the range of 0.03 to 0.3.
(Wherein, in the formula (7), α represents the probability that the molecular terminal is a branch unit, p represents the probability that n chains are formed, and ρ represents the number of branch units.) 前記αで表される値が０．０５〜０．２であることを特徴とする請求項４に記載の芳香族ポリカーボネート。   The aromatic polycarbonate according to claim 4, wherein the value represented by α is 0.05 to 0.2. 前記αで表される値が０．０６〜０．１５であることを特徴とする請求項４に記載の芳香族ポリカーボネート。   The aromatic polycarbonate according to claim 4, wherein the value represented by α is 0.06 to 0.15. 粘度平均分子量が２４，０００以上の芳香族ポリカーボネートである請求項１乃至６のいずれかに記載の芳香族ポリカーボネート。   The aromatic polycarbonate according to any one of claims 1 to 6, which is an aromatic polycarbonate having a viscosity average molecular weight of 24,000 or more. ＪＩＳ Ｋ ７２１０に準拠し、下記式（８）で表されるフローレイト比（ＭＶＲ−Ｒ）が１５〜４５の範囲である請求項１乃至７のいずれかに記載の芳香族ポリカーボネート。
The aromatic polycarbonate according to any one of claims 1 to 7, wherein the flow rate ratio (MVR-R) represented by the following formula (8) is in the range of 15 to 45 in accordance with JIS K 7210.
式（１）で表される構造単位１モルに対する式（５）で表される分岐構造単位のモル数の比が０．０００１〜０．１５ｍｏｌ％である請求項１乃至８のいずれかに記載の芳香族ポリカーボネート。   The ratio of the number of moles of the branched structural unit represented by Formula (5) to 1 mol of the structural unit represented by Formula (1) is 0.0001 to 0.15 mol%. Aromatic polycarbonate. 式（１）で表される構造単位１モルに対する式（６）で表される分岐構造単位のモル数の比が０．０００１〜０．１５ｍｏｌ％である請求項１乃至９のいずれかに記載の芳香族ポリカーボネート。   The ratio of the number of moles of the branched structural unit represented by Formula (6) to 1 mol of the structural unit represented by Formula (1) is 0.0001 to 0.15 mol%. Aromatic polycarbonate. 芳香族ポリカーボネートの粘度平均分子量が２０，０００〜２８，５００である請求項１乃至１０のいずれかに記載の芳香族ポリカーボネート。The aromatic polycarbonate according to any one of claims 1 to 10, wherein the viscosity average molecular weight of the aromatic polycarbonate is 20,000 to 28,500. 芳香族ポリカーボネートの粘度平均分子量が２０，０００〜２６，５００である請求項１乃至１０のいずれかに記載の芳香族ポリカーボネート。The aromatic polycarbonate according to any one of claims 1 to 10, wherein the viscosity average molecular weight of the aromatic polycarbonate is 20,000 to 26,500. 請求項１乃至１２のいずれかに記載の芳香族ポリカーボネートの製造方法において、炭酸ジエステルと芳香族ジヒドロキシ化合物とを反応させて芳香族ポリカーボネートを製造するに際し、芳香族ジヒドロキシ化合物１モルに対して、金属量として１．１〜６μモルのアルカリ金属化合物及び／又アルカリ土類金属化合物を使用することを特徴とする芳香族ポリカーボネートの製造方法。 The method for producing an aromatic polycarbonate according to any one of claims 1 to 12 , wherein when carbonic diester and an aromatic dihydroxy compound are reacted to produce an aromatic polycarbonate, a metal is used per 1 mole of the aromatic dihydroxy compound. A method for producing an aromatic polycarbonate, comprising using 1.1 to 6 μmol of an alkali metal compound and / or an alkaline earth metal compound as an amount. 上記アルカリ金属化合物及び／又アルカリ土類金属化合物の金属量が芳香族ジヒドロキシ化合物１モルに対して、１．３〜３．８μモル使用することを特徴とする請求項１３に記載の芳香族ポリカーボネートの製造方法。 Metal content of the alkali metal compound and / or alkaline earth metal compound relative to the aromatic dihydroxy compound to 1 mole, Fang aromatic according to claim 13, characterized in that the 1.3~3.8μ moles Method for producing polycarbonate. 少なくとも２以上の重合槽により重合する工程を含む分岐化芳香族ポリカーボネートの製造方法であって、最終重合槽が横型であり、最終重合槽での反応温度が２８０〜３００℃の範囲であることを特徴とする請項１３又は１４に記載の芳香族ポリカーボネートの製造方法。 A method for producing a branched aromatic polycarbonate comprising the step of polymerizing by at least two or more polymerization vessels, wherein the final polymerization vessel is horizontal and the reaction temperature in the final polymerization vessel is in the range of 280 to 300 ° C. The method for producing an aromatic polycarbonate according to claim 13 or 14 , characterized in that 請求項１乃至１２に記載の芳香族ポリカーボネート及び炭酸ジエステル化合物を含有する芳香族ポリカーボネート組成物において、炭酸ジエステル化合物の含有量が２００重量ｐｐｍ以下である芳香族ポリカーボネート組成物。 An aromatic polycarbonate composition containing the aromatic polycarbonate and the carbonic diester compound according to any one of claims 1 to 12 , wherein the content of the carbonic diester compound is 200 ppm by weight or less.
JP2005314943A 2002-04-22 2005-10-28 Aromatic polycarbonate and method for producing the same Pending JP2006052416A (en)

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