2014年1月16日 · Here, we present biochemical characterization of PhnY and high-resolution crystal structures of the apo state, as well as complexes with substrate, cofactor, and product.

2012年1月24日 · In the present paper, dynamic mechanical properties of poly(n-alkyl acrylates) (PnAA) and poly(n-alkyl methacrylates) (PnAMA) with different alkyl side chain length were studied. The results show that with the increase of alkyl side chain length, the storage modulus changes more steadily, and the loss modulus peak and the tan δ peak become ...

一种新型的半互穿网络超吸收性树脂（semi-IPN SAR），淀粉-g-聚（丙烯酸钠）/ PVP，具有由淀粉-g-聚（丙烯酸钠）构成的三维（3D）网络结构（在引发剂过硫酸铵（APS）和交联剂N，N'-亚甲基双丙烯酰胺（MBA）存在下，通过自由基溶液聚合法合成淀粉-g-PNaA）网络和 ...

通过13 C NMR光谱定量分析了通过可逆失活自由基聚合（RDRP）和常规自由基聚合（CVRP）获得的PAAs和PNaAs的支化度（DB）。 先前的调查表明，poly（通过RDRP合成时，丙烯酸正丁酯的含量低于通过CVRP（无链转移剂，CTA）合成时的丙烯酸正丁酯。 在目前的工作中，在其他类似的溶剂和温度条件下，通过RDRP和CVRP合成的PAA之间未观察到DB的实质性差异。 我们认为，有必要进行进一步的研究，以了解poly（nRDRP合成的丙烯酸丁酯）和CVRP合成的与否。 …

采用自由基溶液聚合法制备了一种由海藻酸钠-g-聚丙烯酸钠（NaAlg-g-PNaA）网络和线性聚乙烯吡咯烷酮（PVP）组成的pH敏感性半互穿聚合物网络（semi-IPN）高吸水性水凝胶。

实验表明:PNaA树脂对黄连素的吸附量明显大于X-5树脂、H103树脂、AB-8树脂、XAD-4树脂等吸附树脂对黄连素的吸附量;PNaA树脂对黄连素的吸附为放热、自发的过程;PNaA树脂对黄连素的吸附动力学数据符合一级吸附速率方程,颗粒内扩散是吸附速率的主要控制步骤,吸附动力学可采用HSDM模型加以描述;PNaA树脂上黄连素在0.1%NaCl和80%乙醇的混合溶液中静态解吸率为93.43%,解吸效果好。

2014年6月1日 · In this paper, we report synthesis of electrocatalysts with platinum (Pt) nanoparticles supported on the surface of poly (N-acetylaniline) functionalized graphene nanosheets (Pt/PNNA-GN) by in situ polymerization and reduction, which is expected to be able to enhance the catalytic activity toward methanol oxidation.

2014年5月20日 · In this report, a series of peptide nucleic acid amphiphiles (PNAAs) with hybridization properties were designed and synthesized. Driven by hydrophobic interaction, the hybridized PNAAs can form uniform micelles, the base stacking interaction from PNA segments further stabilized the micelles.

2025年2月5日 · Here, we present biochemical characterization of PhnY and high-resolution crystal structures of the apo state, as well as complexes with substrate, cofactor and product.

2021年4月16日 · Seven enzymes are known or likely to act on either PnPy or PnAA as early branch points en route to diverse biosynthetic outcomes, and these enzymes may be broadly classified into three reaction types: hydride transfer, aminotransfer, and …