JP2019127573A - 樹脂組成物の加水分解方法 - Google Patents
樹脂組成物の加水分解方法 Download PDFInfo
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Abstract
Description
本発明に用いる加水分解性を有するポリマー(A)(以下、単に「ポリマー(A)」という)は、加水分解性を有するポリマーであれば良く、その種類は特に限定されない。ポリマー(A)としては、例えばポリエステルが好ましく、特にポリヒドロキシカルボン酸、ジオールとジカルボン酸からなる脂肪族ポリエステル樹脂がより好ましい。
本発明に用いる加水分解促進剤(B)は、ポリマー(A)の加水分解性を促進するものであればその種類は特に限定されない。特にヒドロキシカルボン酸に由来する構成単位(a−1)と多価カルボン酸に由来する構成単位(b−1)を含む共重合体であることが好ましい。なお、「構成単位」とは、重合性単量体に由来する単位であり、末端基は含まない。加水分解促進剤(B)はランダム共重合体、ブロック共重合体、グラフト共重合体の何れでも構わない。
本発明に用いる樹脂組成物(C)は、ポリマー(A)と加水分解促進剤(B)とを混合して得ることができる。その質量組成比(A/B)は、ポリマー(A)と加水分解促進剤(B)の合計量を100として、好ましくは95/5〜50/50、より好ましくは95/5〜55/45、特に好ましくは95/5〜60/40、最も好ましくは95/5〜80/20である。質量組成比がこれらの範囲内にあると、ポリマー(A)の持つ性質を維持しつつ加水分解促進剤(B)による分解速度促進効果がより発揮される傾向にある。また、加水分解促進剤(B)の量が多いほど分解速度の大きな樹脂組成物(C)が得られる傾向にある。
本発明の加水分解方法は、樹脂組成物(C)を塩濃度が特定の値以上の特定のpHの分解液中で加水分解する方法である。この分解液の塩濃度が高いと樹脂組成物(C)中の成分の親水性がさらに増すと考えられ、その結果として樹脂組成物(C)全体の加水分解が促進される。
試料をクロロホルムに溶解し(濃度約0.5質量%)、サイズ排除クロマトグラフィー(SEC)により、重量平均分子量(Mw)をポリスチレン換算の値として求めた。測定条件を以下に示す。
RI検出器:日本分光RI−2031
カラム:SHODEX製 LF−G及びLF−804
カラム温度:40℃
溶媒:クロロホルム
流速:1.0ml/分
撹拌装置及び脱気口を備えた500mlサイズのガラス製反応器に、和光純薬製L−アスパラギン酸39.9g(0.3モル)、Purac社製90%L−乳酸300.3g(3.0モル)を装入した。反応器をオイルバスに漬け、180℃で窒素を流通させながら7時間脱水重合した。得られた褐色固体を粉砕し、粉末状の乳酸とアスパラギン酸の共重合体(PAL)を得た。このPALの重量平均分子量は3700であった。
撹拌装置及び脱気口を備えた500mlサイズのガラス製反応器に、Purac社製90%L−乳酸300.3g(3.0モル)を装入した。反応器をオイルバスに漬け、160℃で窒素を流通させながら7時間脱水重合した。得られた無色透明の固体を粉砕し、粉末状の乳酸オリゴマー(OLA)を得た。このOLAの重量平均分子量は3700であった。
ポリマー(A)としてポリ乳酸(レイシアH400)100質量部のみを用い、180℃、10MPaの条件で5分間熱プレスし、0℃で急冷して、ポリ乳酸(PLA)フィルムを得た。
pH3.4のC8H5KO4−HCl緩衝液にNaClを添加して、塩濃度が1.0mol/Lの分解液1を得た。
質量保持率(%)=Wd/W0×100(%)
W0:加水分解前のフィルムの質量
Wd:加水分解後のフィルムの質量
表1に示すpH7.4、塩濃度1.0mol/Lのリン酸緩衝液からなる分解液2を用いたこと以外は、実施例1と同様にして加水分解を行った。結果を表2に示す。
表1に示すpH3.4、塩濃度0.04mol/LのC8H5KO4−HCl緩衝液からなる分解液3を用いたこと以外は、実施例1と同様にして加水分解を行った。結果を表2に示す。
表1に示すpH7.4、塩濃度0.04mol/Lのリン酸緩衝液からなる分解液4を用いたこと以外は、実施例1と同様にして加水分解を行った。結果を表2に示す。
製造例2で得たPLA−OLAブレンドフィルムと分解液1〜4を用いたこと以外は、実施例1と同様にして加水分解を行った。結果を表2に示す。
製造例3で得たPLAフィルムと分解液1〜4を用いたこと以外は、実施例1と同様にして加水分解を行った。結果を表2に示す。
Claims (11)
- 加水分解性を有するポリマー(A)と加水分解促進剤(B)とを含有する樹脂組成物(C)を、pHが1.0以上、9.6以下の分解液中で加水分解する方法であって、該分解液の塩濃度が0.06mol/L以上であることを特徴とする樹脂組成物の加水分解方法。
- 加水分解性を有するポリマー(A)がポリエステルである請求項1に記載の加水分解方法。
- 加水分解性を有するポリマー(A)がポリ乳酸である請求項2に記載の加水分解方法。
- 加水分解性を有するポリマー(A)がヒドロキシカルボン酸に由来する構成単位(a−1)を有し、加水分解促進剤(B)が前記構成単位(a−1)と多価カルボン酸に由来する構成単位(b−1)とを有する請求項1〜3の何れかに記載の加水分解方法。
- 構成単位(b−1)の多価カルボン酸が、アスパラギン酸、グルタミン酸、クエン酸及びリンゴ酸からなる群より選ばれる1種以上の多価カルボン酸である請求項4に記載の加水分解方法。
- 構成単位(b−1)の多価カルボン酸が、アスパラギン酸及びグルタミン酸からなる群より選ばれる1種以上の多価カルボン酸である請求項5に記載の加水分解方法。
- 構成単位(b−1)の多価カルボン酸が、クエン酸及びリンゴ酸からなる群より選ばれる1種以上の多価カルボン酸である請求項5に記載の加水分解方法。
- 樹脂組成物(C)中の加水分解性を有するポリマー(A)と加水分解促進剤(B)との質量比(A/B)が、95/5〜50/50である請求項1〜7の何れかに記載の加水分解方法。
- 分解液中の塩濃度が0.2mol/L以上、30mol/L以下である請求項1〜8の何れかに記載の加水分解方法。
- 分解液中の塩濃度が0.4mol/L以上、10mol/L以下である請求項9に記載の加水分解方法。
- 分解液のpHが1.0以上、8.0以下である請求項1〜10の何れかに記載の加水分解方法。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000159888A (ja) * | 1997-12-25 | 2000-06-13 | Mitsui Chemicals Inc | 共重合体及びその製造方法 |
JP2006296972A (ja) * | 2005-04-25 | 2006-11-02 | Mitsui Chemicals Inc | 衛生用品 |
JP2010138389A (ja) * | 2008-11-12 | 2010-06-24 | Toyo Seikan Kaisha Ltd | 易分解性樹脂組成物の分解方法 |
JP2011157483A (ja) * | 2010-02-01 | 2011-08-18 | Toyo Seikan Kaisha Ltd | 生分解性樹脂の処理方法 |
WO2015037605A1 (ja) * | 2013-09-10 | 2015-03-19 | 東洋製罐株式会社 | 多孔質構造を有する生分解性樹脂組成物、及び、その表面処理方法 |
JP2015067695A (ja) * | 2013-09-27 | 2015-04-13 | 東洋製罐グループホールディングス株式会社 | 生分解性樹脂の分解方法 |
JP2016210981A (ja) * | 2015-05-08 | 2016-12-15 | 学校法人立教学院 | 生分解性樹脂多孔質体 |
-
2018
- 2018-01-26 JP JP2018011880A patent/JP7049627B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000159888A (ja) * | 1997-12-25 | 2000-06-13 | Mitsui Chemicals Inc | 共重合体及びその製造方法 |
JP2006296972A (ja) * | 2005-04-25 | 2006-11-02 | Mitsui Chemicals Inc | 衛生用品 |
JP2010138389A (ja) * | 2008-11-12 | 2010-06-24 | Toyo Seikan Kaisha Ltd | 易分解性樹脂組成物の分解方法 |
JP2011157483A (ja) * | 2010-02-01 | 2011-08-18 | Toyo Seikan Kaisha Ltd | 生分解性樹脂の処理方法 |
WO2015037605A1 (ja) * | 2013-09-10 | 2015-03-19 | 東洋製罐株式会社 | 多孔質構造を有する生分解性樹脂組成物、及び、その表面処理方法 |
JP2015067695A (ja) * | 2013-09-27 | 2015-04-13 | 東洋製罐グループホールディングス株式会社 | 生分解性樹脂の分解方法 |
JP2016210981A (ja) * | 2015-05-08 | 2016-12-15 | 学校法人立教学院 | 生分解性樹脂多孔質体 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023210177A1 (ja) * | 2022-04-28 | 2023-11-02 | Dic株式会社 | 生分解性樹脂分解促進剤、生分解性樹脂組成物、成形体および生分解性樹脂の分解方法 |
JP7401028B1 (ja) | 2022-04-28 | 2023-12-19 | Dic株式会社 | 生分解性樹脂分解促進剤、生分解性樹脂組成物、成形体および生分解性樹脂の分解方法 |
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