list of SpatialPolygons to SpatialPolygonsDataFrame

Dear all, 

I have a list of SpatialPolygons-class  objects containing only one polygon for each list element. 
How can we gather each SpatialPolygons-class  objects list element in only one SpatialPolygons-class  object without using a 'for' loop? 

Our final target is to have this information in only one  SpatialPolygonsDataFrame-class which can easily created from one SpatialPolygons-class  object. 

Regards
Thank you 

Emanuele Cordano