Polyhedral Oligomeric Silsesquioxane (POSS) as Reinforcing Agent for Waterborne Polyurethane Coatings on Wood

Polyhedral oligomeric silsesquioxane (POSS) was added as a reinforcing agent in waterborne polyurethane (WPU)-based coatings to improve their properties. The morphology, structure, thermal stability as well as mechanical properties of the resulting WPU and WPU/POSS hybrid films were investigated. The good compatibility of POSS in the WPU matrices was demonstrated by transmission electron microscopy. Furthermore, Fourier-transform infrared spectroscopy analysis (FTIR) suggested the successful bonding of POSS and WPU matrices. The thermal stability of WPU/POSS hybrids was improved than that of pure WPU according to thermal gravimetric analysis (TGA). The results also revealed the enhancement of the pencil hardness and abrasion resistance of the hybrid films compared with WPU. However, the pull-off adhesion slightly decreased from Grade 0 to Grade 2.</div

DataSheet1_Copper(II)-Catalyzed Selective CAr-H Bond Formylation: Synthesis of Dialdehyde Aniline.docx

A simple and efficient method for the synthesis of dialdehyde aniline in good yields (up to 83%) is explored using Cu(OTf)2 as the catalyst, Selectfluor as the radical initiator, and DMSO as both the carbon and oxygen sources. Experimental studies indicate that the reaction is achieved by the formylation of two CAr-H bonds, first at the para-position and then at the ortho-position. A possible mechanism is proposed, including the thermal homolysis of Selectfluor, the Cu(II)-facilitated formylation of the CAr-H bonds, and the hydrolysis of the amide under alkaline conditions in air atmosphere.</p

Annotation dataset of Cinnamomum chago

Genome annotation data including organelle

The relationship between Rubisco content and total chloroplast volume per leaf area.

<p>The line represents the regression equation: y = 0.79x+1.36, R² = 0.88, <i>P</i><<i>0.01</i>. Data sources: <i>Nicotiana tabacum</i> □ <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0062036#pone.0062036-Evans3" target="_blank">[21]</a>; <i>Chenopodium album</i> ▴ <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0062036#pone.0062036-Oguchi1" target="_blank">[48]</a>; <i>Aucuba japonica</i> Thunb. △ <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0062036#pone.0062036-Muller1" target="_blank">[24]</a>. The two data points in dotted cycles are from transgenic tobacco with a reduced Rubisco content.</p

Iodine-Mediated Pyridine Ring Expansion for the Construction of Azepines

A synthesis of azepines by the expansion of pyridine rings promoted by iodine in air is reported. The scope of the method is demonstrated with 27 examples. Two iodinations are involved in the reaction, in which the second iodination leads to the opening of the six-membered ring

<i>A</i>/C_i response curves of newly expanded leaves in Shanyou 63 (a) and Yangdao 6 (b).

<p>The symbols of solid cycles, open cycles and solid triangles represent high, intermediate and low N supply, respectively.</p

The relationships between initial Rubisco activity and (a) the ratio of mesophyll conductance (g_m) to Rubisco content, and (b) the ratio of total conductance (g_t) to Rubisco content on Shanyou 63 (solid cycles) and Yangdao 6 (open cycles).

<p>The lines represent the following regressions: (a) y = 0.39x−0.89 R² = 0.93 <i>P</i><0.01; (b) y = 0.54x−0.25 R² = 0.80 <i>P</i><0.05.</p

Growth variables of rice seedlings grown at different N supplies.

<p>Rice plants (<i>cv.</i> Shanyou 63 and Yangdao 6) were supplied with N at three different levels (low: 20 mg L⁻¹ N, intermediate: 40 mg L⁻¹ N, and high: 100 mg L⁻¹ N). Data are means ± SD of 5 individual plants. Variables were determined 40 days after the start of treatment.</p><p>Notes: Significant differences (<i>P</i><5%) between N supplies or varieties were indicated by different lowercase letters or different uppercase letters, respectively. RMR, SCMR and LMR represent root mass ratio, leaf sheath and culm mass ratio and leaf mass ratio, respectively. They were calculated as the ratio of separate dry mass to whole plant dry mass. SLW represents specific leaf weight, and was calculated as the ratio of leaf fresh weight to leaf area.</p

The relationships between leaf photosynthetic rate (<i>A</i>) and (a) leaf N content, and (b) Rubisco content and in Shanyou 63 (closed cycles) and Yangdao 6 (open cycles).

<p>The lines represent the following regression equations: (a) y = 0.12x+6.33 R² = 0.82 <i>P</i><0.01 for Shanyou 63; y = 0.17x−0.60 R² = 0.79 <i>P</i><0.01 for Yangdao 6; (b) y = 0.22x+8.59R² = 0.78 <i>P</i><0.01 for Shanyou 63; y = 0.40x−1.53 R² = 0.91 <i>P</i><0.01.</p