JP6868645B2 - 量子ドットを封入するレオロジー改質剤 - Google Patents
量子ドットを封入するレオロジー改質剤 Download PDFInfo
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- JP6868645B2 JP6868645B2 JP2018559183A JP2018559183A JP6868645B2 JP 6868645 B2 JP6868645 B2 JP 6868645B2 JP 2018559183 A JP2018559183 A JP 2018559183A JP 2018559183 A JP2018559183 A JP 2018559183A JP 6868645 B2 JP6868645 B2 JP 6868645B2
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- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
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- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
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- 239000003960 organic solvent Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000000103 photoluminescence spectrum Methods 0.000 description 1
- 229920006260 polyaryletherketone Polymers 0.000 description 1
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- 238000010526 radical polymerization reaction Methods 0.000 description 1
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- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229920000428 triblock copolymer Polymers 0.000 description 1
- ZMBHCYHQLYEYDV-UHFFFAOYSA-N trioctylphosphine oxide Chemical compound CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC ZMBHCYHQLYEYDV-UHFFFAOYSA-N 0.000 description 1
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- B82—NANOTECHNOLOGY
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- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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- C08J3/20—Compounding polymers with additives, e.g. colouring
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Description
(a)量子ドットと、
(b)式(I)の化合物であって、
(c)50,000〜400,000のMnを有し、10〜100重量%のスチレン重合単位及び0〜90重量%の非スチレンブロックを含む、ブロックコポリマーまたはグラフトコポリマーであって、非スチレンブロックが15.0〜17.5(J/cm3)1/2のVan Krevelen溶解度パラメータを有する、ブロックコポリマーまたはグラフトコポリマーと、を含む、ポリマー樹脂を提供する。
(a)量子ドットと、
(b)式(I)の化合物と、
(c)ポリマー臨界分子量Mcより大きなMnを有し、16.5〜20.0(J/cm3)1/2のVan Krevelen溶解度パラメータを有する、ホモポリマーまたはランダムコポリマーと、を含む、ポリマー樹脂をさらに提供する。
A)液体試料調製
QD樹脂の全ての試料を、不活性環境下で調製した。スチレン系ポリマーを80℃で〜30分間磁気攪拌を使用して混合することによってイソボルニルアクリレート中に溶解した。量子ドット以外の全ての成分をクリンプバイアルに充填した後、バイアルをガス抜きし、3〜5分間2軸遊星式混合機(Thinky ARE−310)を使用して混合した。量子ドットをイソボルニルアクリレート中に事前に分散し、その後他の成分と混合し、その後1時間転動させた。
2つのi−Component PETバリアフィルムの間に樹脂配合物を積層することによって、全ての試料を調製した。約2mLの樹脂を下部フィルム上に分配し、上部に所望のフィルム厚に基づいてギャップ設定したギャップコーティングバーを適用した。〜400mJ/cm2のUVAを用いたFusion UV F300S硬化システムで、試料を硬化した。その後、フィルムを量子収率測定用の約0.2インチ平方の片及び光酸化試験用の1×1インチ平方の片に切った。フリースタンディングフィルムもまた、ガラス上に樹脂配合物をコーティングし、その後、FUSION UV SYSTEMS,INC(DRS−10/12 QNH)での〜400mJ/cm2のUVAを用いた硬化によって調製した。その後、フリースタンディングフィルムをガラスから離層し、23℃で3%のO2及び97%のN2を用いたMocon ox−tranモデル2/21を使用するO2透過性試験に使用した。
粘度をBrookfield DV−II+粘度計によって測定した。樹脂の周波数掃引及び定常流動実験を、20℃でAR G2レオメータを使用して行った。液体及びフィルムの両方の光ルミネセンス量子収率(PLQY)、ピーク発光波長(PWL)、及び発光ピークの半値全幅(FWHM)をHamamatsu C9920−02G積分球で測定した。フィルム厚は、マイクロメータで硬化させたフィルムを測定し、次いで、バリアフィルム厚を差し引くことによって判定した。エッジ侵入を、剥き出しのバックライトユニット上で劣化した1インチ×1インチの試料の画像解析によって判定した。ポリマーの数平均分子量(Mn)及び多分散度(PDI)を、安定化されたテトラヒドロフランを35℃、1.0mL/分で用いるMixed A PLgel 20um×300mm×7.5mm(X2+ガード)カラムを備えたサイズ排除クロマトグラフィー及び示差屈折率検出器(ポリスチレン標準物質に対する)を使用して判定した。
KRATONブロックコポリマーは、無機フュームドシリカより高いアクリルモノマーの粘度増大を示した。KRATONブロックコポリマー及びいくつかの無機フュームドシリカの両方が、QDとの混和性を示した。
より低MWのアクリレートオリゴマーとのKRATONの比較
KRATON G1652は、試験されたより低MWのアクリレートオリゴマーより高いQD(より高いQY、より低いピーク波長、及びFWHM)との混和性を示した。
異なるMWを有する2つのKRATONブロックコポリマーの比較
同様のスチレン組成物を有するが、より高いMW(トルエン中の溶液粘度及びメルトインデックスによっても示される)を有するKRATON SEBSブロックコポリマーG1650は、アクリレート系QD樹脂のより高い粘度増大を示した。
異なるKRATONポリマーと単一のモノマーを混合されたスチレンホモポリマーとの比較
KRATONブロックコポリマーは、PLQY、PLmax、及びFWHMによって示されるようなIBOA中のQDと概して混和性がある。
12%より高いスチレン組成物を有するKRATONブロックコポリマーは、IBOA:SR−833(1:1)混合物中で可溶性であり、26%より高いスチレン組成物を有するKRATONブロックコポリマーは、SR−833中で可溶性である。
完全な樹脂/フィルム配合物における2つの異なるKRATONブロックコポリマーの比較
より高いMW及びより高いスチレン量を有するKRATON A1535とのKRATON G1652の交換は、60℃及び90RH%で劣化したQDフィルムの同等の樹脂粘度、同等のPLQY、及びより低いエッジ侵入を取得するためのレオロジー改質剤のより低い充填をもたらす。
フィルム(バリア特性)における2つの異なるKRATONブロックコポリマーの比較
より高いMW及びより高いスチレン量を有するKRATON A1535とのKRATON G1652の交換は、加速試験でのQDフィルムのより低いエッジ侵入と一致するフィルムのより良いO2バリアをもたらす。
樹脂(レオロジー的特性)における2つの異なるKRATONブロックコポリマーの比較
Claims (9)
- ポリマー樹脂組成物であって、
(a)量子ドットと、
(b)(i)1つの(メタ)アクリレートエステル置換基を有する式(I)の化合物であって、
(c)50,000〜400,000のMnを有し、40〜90重量%のスチレン重合単位及び10〜60重量%の非スチレンブロックを含む、ブロックコポリマーまたはグラフトコポリマーであって、前記非スチレンブロックが15.0〜17.5(J/cm3)1/2のVan Krevelen溶解度パラメータを有する、ブロックコポリマーまたはグラフトコポリマーと、を含む、ポリマー樹脂組成物。 - 前記(i)1つの(メタ)アクリレートエステル置換基を有する式(I)の化合物のR2がC7−C17架橋多環式置換基であり、前記(ii)2つの(メタ)アクリレートエステル置換基を有する式(I)の化合物のR 2 が1つの(メタ)アクリレートエステル置換基を有するC 7 −C 17 架橋多環式置換基である、請求項1に記載のポリマー樹脂組成物。
- 前記ブロックコポリマーまたはグラフトコポリマーが、少なくとも40重量%のスチレン重合単位及びアルケン、ジエン、またはそれらの組み合わせの重合単位を含む炭化水素ポリマーである、請求項2に記載のポリマー樹脂組成物。
- 70〜95重量%の前記式(I)の化合物と、1〜20重量%の前記ブロックコポリマーまたはグラフトコポリマーと、0.01〜5重量%の量子ドットと、0.3〜5重量%の硬化剤と、を含む、請求項3に記載のポリマー樹脂組成物。
- 前記(i)1つの(メタ)アクリレートエステル置換基を有する式(I)の化合物のR2の前記C 7 −C 17 架橋多環式置換基がビシクロ[2,2,1]アルカンまたはトリシクロデカン環系を有し、前記(ii)2つの(メタ)アクリレートエステル置換基を有する式(I)の化合物のR 2 の前記C 7 −C 17 架橋多環式置換基がビシクロ[2,2,1]アルカンまたはトリシクロデカン環系を有する、請求項4に記載のポリマー樹脂組成物。
- 前記ブロックコポリマーまたはグラフトコポリマーが、60,000〜300,000のMnを有する、請求項5に記載のポリマー樹脂組成物。
- 前記ブロックコポリマーまたはグラフトコポリマーが、少なくとも40%のスチレン重合単位ならびにC2−C8アルケン及びC2−C8ジエンからなる群から選択される60重量%以下のモノマー重合単位を有する、請求項6に記載のポリマー樹脂組成物。
- 前記C2−C8アルケン及びジエンが、エチレン、プロピレン、ブチレン、イソプレン、及びブタジエンからなる群から選択される、請求項7に記載のポリマー樹脂組成物。
- 前記ブロックコポリマーまたはグラフトコポリマーが、70,000〜250,000のMnを有する、請求項8に記載のポリマー樹脂組成物。
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