Aimed to obtain a type of oil displacement with both surface activity and polymer performances, this paper based on mixing initiators at low temperatures, prepared a type of anion–nonionic surface–active polymer oil displacement agent (ANSP–1) by introducing polymerizable anion–nonionic surfmer (ANS–1), acrylamide (AM) and acrylic acid (AA). Structure of ANSP–1 was measured by FTIR. Laboratory ...

Our work introduces a class of stimuli-responsive expanding polymer composites with the ability to unidirectionally transform their physical dimensions, elastic modulus, density, and electrical resistance. Carbon nanotubes and core-shell acrylic microspheres were dispersed in polydimethylsiloxane, resulting in composites that exhibit a binary set of material properties. Upon thermal or infrared...

The nanostructure of poly(acrylic acid) (PAA) adsorption layer on the surface of mesoporous-activated carbon HPA obtained by physical activation of residue after supercritical extraction of hops was characterized. This characterization has been done based on the analysis of determination of adsorbed polymer amount, surface charge density, and zeta potential of solid particles (without and in th...

We report a first observation of nanoscale surface structures of segregated pinned micelles of grafted Y-shaped molecules and their reversible structural reorganization. We designed a novel type of Y-shaped molecules combining two highly incompatible polymer chains (arms) attached to a single focal point capable of chemical grafting to a functionalized silicon surface. We demonstrated that spat...

In this study, tetra isopropyl ortho titanate (TTIP) and polycaprolactone (PCL) were chosen as the ceramic precursor and the continuous phase, respectively, for the preparation of novel nanocomposites by using an in situ sol-gel process. In addition, acrylic acid grafted polycaprolactone (PCL-g-AA) was investigated as an alternative to PCL. The hybrids (PCL/TiO2 and PCL-g-AA/TiO2) were characte...

OBJECTIVES The purpose of this study was to evaluate the antimicrobial activity of an acrylic resin combined with an antimicrobial polymer poly (2-tert-butylaminoethyl) methacrylate (PTBAEMA) to inhibit Staphylococcus aureus, Streptococcus mutans and Candida albicans biofilm formation. MATERIAL AND METHODS Discs of a heat-polymerized acrylic resin were produced and divided according to PTBAEM...

Waterborne polyurethane-acrylic hybrid nanoparticles for application as pressure-sensitive adhesives (PSAs) were prepared by one-step miniemulsion polymerization. The addition of polyurethane to a standard waterborne acrylic formulation results in a large increase in the cohesive strength and hence a much higher shear holding time (greater than seven weeks at room temperature), which is a very ...

光線力学療法のための光増感剤は体透過性の良い長波長の光を吸収する必要がある．このため光増感剤の分子構造は平面性が高く，水溶性の低下と凝集による光化学的特性の低下が問題になることが多い．このような光増感剤の水溶化と腫瘍集積性の付与にはドラッグデリバリーシステム（DDS）の利用が有効である．本論文ではアクリル酸ベンジル（BnA），アクリル酸2-ジメチルアミノエチル（DMAEA），アクリル酸ポリエチレングリコールモノメチルエーテル（PEGA）からpH応答性を有するブロックコポリマーP(BnA-co-DMAEA)-b-PPEGAを合成した．合成したブロックコポリマーから透析法により高分子ミセルを調製した．調製した高分子ミセルのpH応答性はDLS測定により確認した．またこの高分子ミセルは光増感剤である亜鉛フタロシアニン（ZnPc）を内包し，安定な水溶液を与えた．このZnPc内包高分子ミセルはR...