ABSTRACTIn this contribution, three polymerizable benzophenone photoinitiators containing maleimide group including 4-maleimidebenzophenone (MBP), 4-chlorine-4′-maleimide benzophenone (CMBP), and 4-maleimide-4′-[(4-maleimide)thiophenyl]benzophenone (MMTBP) were designed and synthesized to enhance the polymerization degree of photosensitive polysiloxane containing methacryloxy active groups (MAPSO). The polymerization behaviors of the MAPSO cured by different photoinitiators were investigated using Fourier transform infrared (FTIR). It was noted that the MAPSO initiated by MMTBP showed a high carbon–carbon double bond conversion above 80% because of the existence of thiophenyl group which could generate more radicals from the photolysis reaction at the CS bond. In addition, the thermal stability of the UV-cured MAPSO were studied by thermogravimetric analysis (TGA), the result showed that the initial 5% mass loss (T5%) and residual weight percent at 800 °C in nitrogen of the UV-cured MAPSO initiated by MMTBP systems was 200 °C and 33.8%. Thus, this work provides a new perspective and efficient strategy to improve the polymerization degree of UV-curable polysiloxanes with carbon–carbon double bonds. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 1696–1705

•Hyperbranched polysiloxane is synthesized via Michael addition.•Surface active of PBO fiber is increased via grafted Hyperbranched polysiloxane.•Hella cell selectively adhered on functional surface PBO fiber with activated peptide spots.Hyperbranched polymer was synthesized via Michael addition. The biocompatible peptide was incorporated into hyperbranched polymer. As a result, they are promising candidates for cell adhesive molecular. Herein, we developed a strategy for synthetic hyperbranched polymer based on polysiloxane. A poly-p-phenylene benzobisoxazole (PBO) fiber as substrate, polyhedral oligomericsilsesquioxane (POSS) as core, prepared hyperbranched polymer was grafted to surface of PBO fiber. Experiment results show that hyperbranched polysiloxane was uniformly grafted onto the PBO fiber and significantly increase the surface activity. In addition, the functional PBO fiber as substrate presents biocompatible based on activity peptide. Hela cell selectively adhered on surface functional PBO fiber with activated peptide spots. Thus, the results of this study further extend the application of engineered polymer materials to cell biology.Download high-res image (210KB)Download full-size image

•Polymer microarrays for high-throughput cell-based screening•Peptides adhesive cells based on PBO fiber grafting reactivity polysilicone resin•Peptide adhesives Cell based on PEG hydrogelThis review discusses the functional polymer materials effect on the cell adhesion. The applied polymer materials for the cell adhesion purpose was prepared based on organic fibers and biocompatible hydrogel. On the other hand, the active peptides are incorporated into the polymer materials substrate via the cysteine-containing peptides and N-hydroxysuccinimide-active group. Cancer cells and normal cells were presented for the selective adhesion via the introduced polymer materials substrate containing active peptides including Arginine–Glycine-Aspartic and Isoleucine-Lysine–Valine-Alanine–Valine sequence peptides. This selectivity is revealed by a significant cooperativity between specific and non-specific cell adhesion. This study is of a great impact for the design of the polymeric structures for cell attachment.Download high-res image (73KB)Download full-size image

The drug instability, toxicity and the barrier to the target area necessitate a suitable drug delivery system with an external or internal control of the release. Spatio-temporal control using a surface functionalized nano-carrier seems to be the best alternative for guided drug delivery and release. This manuscript provides a broad spectrum about the drug carrier interface modification to cover the need for temporal drug delivery control under neglect side effects. On the other hand, recent advances related to the drug vehicle are highlighted, besides physical (Electric field, magnetic field, light) or mechanical (Ultrasound, mechanical strain), chemical (pH, redox gradient, enzyme) stimuli mediated DDS. Precisely, the paper focus on the NIR light as an effective external stimulus for remotely-triggered DDS. NIR responsive drug delivery systems are considered as novel drug modality that ensures an eco-friendly spatiotemporal control and an administrated meditation. This study also investigated the NIIR spectroscopy (NIRS) combined with partial least square (PLS) for quantitative analysis of a polyvinyl alcohol based prodrug (PVA-DOX) in order to reveal the high potential of NIRS for drug release monitoring and the extraction of concise calibration models.Download high-res image (356KB)Download full-size image

•NIR spectroscopy provides on-line control strategies of epoxy resin/prepreg.•Micro-computed tomography can analyze internal prepreg microstructure.•Micro-computed tomography can calculate the degree of defects in prepreg.•NIR spectroscopy is promising for analysis of epoxy resin/prepreg.•Micro-computed tomography is promising for analysis of epoxy resin/prepreg.Epoxy resin and prepreg have been used to fabricate high-performance materials for application in industries, such as energy, aircraft, automobile, and sports equipment, which require controlled epoxy-resin matrix and prepreg quality during preparation. Near-infrared (NIR) spectroscopy, micro-computed tomography (Micro-CT), β-ray technology and differential scanning calorimetry are used for analysis of prepreg quality. We review the advantages and the drawbacks of various analytical strategies for quality and on-line control of prepreg. In this review, we present an overview of the NIR spectroscopy and Micro-CT methods, which are new methods for the on-line analysis and microstructure control of prepreg. These analytical methods can direct the quality control of epoxy resin and prepreg.

•Multifunction recording coating for ink-jet printing (RC-IJP) materials were prepared successfully based on nano-silica.•The amphiphilic oligoester was grafted onto the surface of silica.•The prepared RC-IJP can adsorb both water and oil ink effectively and can present color images clearly.Multifunctional recording coatings for ink-jet printing (RC-IJP) materials were prepared greenly and successfully using nano-silica. An amphiphilic oligoester was grafted onto the surface of nanoscale inorganic silica pigment with toluene-2, 4-diisocynate as a coupling agent. Multifunctional recording coating materials were prepared with homogenized modified silica and polyvinyl alcohol. When the modified silica is exposed to water, the hydrophobic moieties (alkyl chain) curl, and the hydrophilic moieties unfold. In addition, upon exposure to organic solutions, the surface of the silica transitions to a stable energetic hydrophilic state with unfolded aliphatic hydrophobic groups. The prepared RC-IJP can adsorb both water- and oil-based ink effectively and can present color images clearly.

The preparation and manufacture of the recording coating on ink jet printing (RC-IJP) was proposed. The microstructure of RC-IJP was analyzed by scanning electron microscopy. Fourier transform near infrared (FT-NIR) spectra showed the combination and overtone vibrations information of the hydrogen-containing groups in the RC-IJP structure. FT-NIR spectra combined with partial least squares (PLS) methods were proposed for the analysis of the glossiness degree, smoothness degree and weight per unit area of recording material (Gr) in RC-IJP. 45 samples were selected for the calibration sets of glossiness degree, smoothness degree and Gr respectively. A spectral pretreatment method was used to develop a robust calibration model. After optimizing the spectral pre-treatment, the determination coefficient (R2) of the glossiness degree, smoothness degree and Gr was 0.86, 0.94, and 0.98, respectively. Root mean square error of prediction (RMSEP) of the glossiness degree, smoothness degree and Gr was 1.65, 13.86, 0.054, respectively. The analytical results showed that NIR spectra using PLS had significant potential as a rapid and accurate method for the analysis of the glossiness degree, smoothness degree and Gr in the manufacture of RC-IJP.