| http://www.w3.org/ns/prov#value | - Hence, the inorganic polymer in the microcapsular shell is prepared by a sol-gel process from a sol-gel precursor such as, but not limited to, metal alkoxide monomer, a semi-metal alkoxide monomer, a metal ester monomer, a semi-metal ester monomer, a silazane monomer, a monomer of the formula M(R)n(P)m, wherein M is a metallic or a semi metallic element, R is a hydrolyzable substituent, n is an in
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