JP2007519786A - 統計的共重合体の利用 - Google Patents
統計的共重合体の利用 Download PDFInfo
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- JP2007519786A JP2007519786A JP2006549912A JP2006549912A JP2007519786A JP 2007519786 A JP2007519786 A JP 2007519786A JP 2006549912 A JP2006549912 A JP 2006549912A JP 2006549912 A JP2006549912 A JP 2006549912A JP 2007519786 A JP2007519786 A JP 2007519786A
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- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 5
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
- B01J13/046—Making microcapsules or microballoons by physical processes, e.g. drying, spraying combined with gelification or coagulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82B—NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
- B82B3/00—Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F230/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
-
- C—CHEMISTRY; METALLURGY
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Abstract
Description
マトリックスの屈折率と異なる屈折率を持つ物質を添加することで、必然的に光散乱が起こり、最終的には光が不透明になるので、光学用の混合物において、粒子サイズは重要な役割をはたす。混合物を通過する特定波長の放射強度の劣化は無機粒子の径に大きく依存する。
また、R2は親水性残基であり、ホスホネート、スルホネート、ポリオールもしくはポリエーテル基が好ましく、
またここで、XR1とYR2はそれぞれ本発明の特定の形式に従った分子であれば、複数の異なった意味を有していてもよい共重合体が見いだされた。
本システムにおける液滴サイズは、同業者にすでに知られた様式で設定され、油相は当業者により個々に反応システムに適したものが選択される。例えば、酸化亜鉛(ZnO)粒子の生成には、油層としてトルエンとシクロヘキサンが適していることがすでに証明されている。
本発明の粒子の特に有利な点は、ポリマー中の粒子の均一分散に必要なエネルギーが従来技術に比べて低いことにある。
ポリマーはここで、例えば塗料などのポリマー分散物でもありうる。ここで、組み込みは従来の混合操作で実施することができる。
例
例1:マクロ界面活性剤の合成
酸化亜鉛粒子は以下の方法で沈殿させる
1、1.1gの水に0.4gのZn(AcO)22H2Oが含まれている水溶液(エマルジョン1)と1.35gの水に0.15gの水酸化ナトリウムの水溶液(エマルジョン2)の逆エマルジョンを各々超音波により準備。エマルジョン1および2は、それぞれ表1のE1〜E5の統計的共重合体を150mg含む。
2、エマルジョン1と2の混合液を超音波処理し、その後乾燥。
3、得られた固体を水で洗浄することで酢酸ナトリウムの精製。
4、トルエン中で攪拌された乳化剤により、表面が機能化された粉末を乾燥と再分散。
例3:二酸化シリコンの沈殿
1、Na2SiO3(エマルジョン1)と硫酸(エマルジョン2)の水溶液の逆エマルジョンを、超音波により各々準備(表2に対応する濃度)。
2、エマルジョン1とエマルジョン2の混合液を超音波処理し、その後の乾燥。
3、得られた固体を水で洗浄することにより精製。
4、得られた粉末の乾燥と再分散。
1.2μm 35% 4%
1.6μm 40% 5%
2.2μm 45% 7%
比較:
(上記のPMMAラッカー中のZnO (高純度(extra pure), Merck) )
2μm 64% 46%
Claims (20)
- 少なくとも1つ以上の疎水基を含む構造ユニットと、少なくとも1つ以上の親水基を含む構造ユニットを含む統計的共重合体の乳化剤としての使用。
- エマルジョンからのナノ粒子の合成において、共重合体を乳化剤として使用することを特徴とする、請求項1に記載の使用。
- 統計的共重合体の疎水性基を含む構造ユニットと親水性基を含む構造ユニットの重量比が1:2から500:1、好ましくは1:1から100:1、特に好ましくは7:3から10:1の範囲であることを特徴とする、請求項1または2に記載の使用。
- 統計的共重合体の平均分子量(Mw)が、1000から1000000g/mol、好ましくは1500から100000g/mol、特に好ましくは2000から40000g/molの範囲であることを特徴とする、請求項1〜3のいずれかに記載の使用。
- XおよびYは、それぞれ独立して −O−、 −C(=O)−O−、−C(=O)−NH−、−(CH2)n−、フェニレンまたはピリジルであることを特徴とする、請求項5に記載の使用。
- 少なくとも1つの構造ユニットが、少なくとも1つの4級窒素原子を含み、ここでR2が、好ましくは−(CH2)m−(N+(CH3)2)−(CH2)nSO3 −残基または−(CH2)m−(N+(CH3)2)−(CH2)nPO3 2−残基であり、mが1〜30の整数あり、好ましくは1〜6であり、2が特に好ましく、nが1〜30の整数であり、好ましくは1〜8であり、3が特に好ましい、
ことを特徴とする。請求項1〜6のいずれかに記載の使用。 - 少なくとも1つの構造ユニットが、オリゴマーまたはポリマーであり、好ましくはマクロモノマーであり、ここでポリエチレン、ポリオレフィンおよびポリアクリレートがマクロモノマーとして特に好ましい、
ことを特徴とする、請求項1〜7のいずれかに記載の使用。 - ポリマー修飾ナノ粒子の製造方法であって、ステップa)において、一または二以上のナノ粒子の水溶性前駆体を含む逆エマルジョンまたは溶解物が、疎水性基を含む少なくとも1つのモノマー、および親水性基を含む少なくとも1つのモノマーからなる統計的共重合体を用いて製造され、ステップb)において、粒子が生成される、前記ポリマー修飾ナノ粒子の製造方法。
- 粒子が、ステップbにおいて、前駆体の反応または溶解物の冷却により生成されることを特徴とする、請求項9に記載の方法。
- 前駆体が、酸、苛性アルカリ溶液、還元剤または酸化剤と反応することを特徴とする、請求項10に記載の方法。
- 前駆体としての珪酸ナトリウムが、酸または苛性アルカリ溶液と反応して二酸化シリコンを生成することを特徴とする、請求項11に記載の方法。
- 貴金属の可溶性化合物、好ましくは硝酸銀が、還元剤、好ましくはクエン酸と反応して、金属を生成することを特徴とする、請求項11に記載の方法。
- 可溶性金属化合物、好ましくは、可溶性の鉛、カドニウムまたは亜鉛化合物を硫化水素と反応させて、硫化金属を生成することを特徴とする、請求項11に記載の方法。
- 可溶性金属化合物、好ましくは塩化カリウムを、二酸化炭素と反応させて、金属炭酸塩を生成することを特徴とする、請求項11に記載の方法。
- エマルジョン中の液滴サイズが5〜〜500nm、好ましくは10〜〜200nmであることを特徴とする、請求項9〜15のいずれかに記載の方法。
- 前駆体の反応剤が乳化された第2のエマルジョンが、ステップaからの前駆体エマルジョンとステップbで混合されることを特徴とする、請求項9〜16のいずれかに記載の方法。
- 2つのエマルジョンが、超音波で互いに混合されることを特徴とする、請求項17に記載の方法。
- 1または2以上の前躯体が、水溶性の金属化合物、好ましくはシリコン、セリン、コバルト、クロム、ニッケル、亜鉛、チタン、鉄、イットリウム、またはジルコニウム化合物から選択され、該前駆体を酸性溶液または苛性アルカリ性溶液と反応させることを特徴とする、請求項9〜18のいずれかに記載の方法。
- 共乳化剤、好ましくは非イオン性界面活性剤を使用することを特徴とする、請求項9〜19のいずれかに記載の方法。
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WO2008066611A2 (en) | 2006-10-16 | 2008-06-05 | Rhodia Inc. | Agricultural adjuvant compositions. pesticide compositions. and methods for using such compositions |
FR2914647B1 (fr) | 2007-04-05 | 2011-10-21 | Rhodia Recherches Et Tech | Copolymere comprenant des unites betainiques et des unites hydrophobes et/ou amphiphiles,procede de preparation,et utilisations. |
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