1. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
2. National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11793-5000, United States
3. Department of Fiber and Polymer Technology and Wallenberg Wood Science Center, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden