Yuyan Lai, Mingxin Zhang, Haitao Yu, Weiyu Wang, Panchao Yin*
Core-shell inorganic-organic hybrid nanocomposites, Ti-PMMAs are constructed applying the titanium-oxo cluster (Ti6O4(BrC[CH3]2COO)8(OiPr)8, TiO; iPr = isopropyl) as quasi-spherical initiator for ATRP (atom-transfer radical polymerization). Confirmed by UV-Vis measurements and mechanical test, Ti-PMMAs inherit the properties of both TiO cluster and polymers and show outstanding UV-proof performance, high visible light transmittances, and excellent mechanical properties and processabilities. The elasticity and toughness of TiO-polymer nanocomposites can be further optimized by simply tuning the polymer composites during the ATRP reactions. The admirable processability of the hybrid materials render us the capability to produce uniform nano-coatings of Ti-PMMAs and TiO2 with thickness approaching to a challenging length scale, 10 nm.
我们利用钛氧羰基簇作为ATRP（Atom- 转移自由基聚合）引发剂构建了核-壳无机-有机杂化纳米复合材料，Ti-PMMAs。通过UV-Vis测量和拉伸测试确认，Ti-PMMA继承了TiO团簇和聚合物的特性，并显示出出色的防紫外线性能，高可见光透射率以及良好的机械性能和可加工性。另外，该材料可以通过在ATRP反应过程中简单地调节来进一步优化TiO-聚合物纳米复合材料的弹性和韧性。这种杂化材料良好的可加工性使我们能够生产均匀的、厚度接近10 nm的Ti-PMMA和二氧化钛纳米涂层。
Keywords：Core-shell type hybrid material Nano-coatings Titanium-oxo cluster Transparent UV-resistant material
文章链接：https://onlinelibrary.wiley.com/doi/full/10.1002/pc.25370