SEARCH Articles Figures Tables 3- Hydroxypropyl ethers 3- hydroxypropyl methyl Acetals ether Acetals methylation Acetates methylated Acetic ether Cellulose acetate Cellulose ethers Cellulose hydroxypropyl methyl ether Cellulose methyl ether Cellulose methylation Cellulosics cellulose acetate Ether cellulose ethers Ethers cellulosics Hydroxypropyl methyl cellulose Hydroxypropylation Methyl acetals Methyl acetate Methyl cellulose Methyl cellulosics