1·The luminescent strength is improved owing to decrease the fluorescence quenching of hydroxyl group when PEG is incorporated.
PEG的加入有助于提高发光强度，是因为降低了羟基的荧光淬灭。
2·With hydroxyl group terminated PDMS on both side as feedstock, adding several kinds of fillers and adjuvants, the room-temperature vulcanized silicone rubber coatings are prepared.
以二羟基聚二甲基硅氧烷（PDMS）为基体，加入不同填料和助剂，制备了室温硫化硅橡胶涂层。
3·On the present, the main studies focus on the stability improvement of photochromic dyes, preparation of sol-gel optical fibre and decrease of hydroxyl group content.
提高光致变色染料的稳定性、制备溶胶-凝胶光纤及降低杂化材料羟基含量是目前的研究重点。
4·X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.
对烷基化壳聚糖进行X射线光电子能谱分析表明，随着卤代烷试剂反应活性的增高，发生在壳聚糖羟基上的烷基取代反应增多。
5·All K atoms coordinate with o atoms of phenolic hydroxyl group and nitro-group simultaneously.
所有的K离子均同时与酚羟基和硝基的氧原子配位。