高等学校化学学报
高等學校化學學報
고등학교화학학보
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES
2014年
1期
26-29
,共4页
王敏%李冬%蔡文京%姜男哲
王敏%李鼕%蔡文京%薑男哲
왕민%리동%채문경%강남철
SBA-15%形貌控制%壳聚糖
SBA-15%形貌控製%殼聚糖
SBA-15%형모공제%각취당
SBA-15%Morphology control%Chitosan
以三嵌段共聚物P123为结构导向剂,天然高聚物壳聚糖为添加剂,合成出分散性较好的杆状结构SBA-15.通过调节体系中壳聚糖的含量,可以实现对产物形貌的控制,即从颗粒到短杆状,最后到长杆状.壳聚糖的加入不仅使SBA-15的介孔结构更加长程有序,同时也提高了其比表面积和孔容,其最高值分别达到1157 m2/g和1.53 cm3/g.
以三嵌段共聚物P123為結構導嚮劑,天然高聚物殼聚糖為添加劑,閤成齣分散性較好的桿狀結構SBA-15.通過調節體繫中殼聚糖的含量,可以實現對產物形貌的控製,即從顆粒到短桿狀,最後到長桿狀.殼聚糖的加入不僅使SBA-15的介孔結構更加長程有序,同時也提高瞭其比錶麵積和孔容,其最高值分彆達到1157 m2/g和1.53 cm3/g.
이삼감단공취물P123위결구도향제,천연고취물각취당위첨가제,합성출분산성교호적간상결구SBA-15.통과조절체계중각취당적함량,가이실현대산물형모적공제,즉종과립도단간상,최후도장간상.각취당적가입불부사SBA-15적개공결구경가장정유서,동시야제고료기비표면적화공용,기최고치분별체도1157 m2/g화1.53 cm3/g.
SBA-15 rods with different lengths( from hexagonal paticials to short rods, and to longer rods) were synthesized via triblock copolymer P123 as a structure-directing agent and chitosan as a co-surfactant. The results show that chitosan is indispensable for tuning the length of SBA-15 rods. Addition of chitosan could improve the periodicity of the SBA-15 and the specific surface area and total proe volume are increased to 1157 cm2/g and 1.53 cm3/g, respectively.