Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a) having a chain hydrocarbon skeleton, a divinyl ether compound (a-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).

Embodiments of the present disclosure describe a method of synthesizing a glycidyl azide homopolymer comprising contacting a glycidyl azide monomer, an initiator, and a Lewis acid sufficient to form the glycidyl azide homopolymer; wherein the glycidyl azide homopolymer is directly polymerized from the glycidyl azide monomer. Embodiments of the present disclosure further describe a method of making a glycidyl azide polymer comprising contacting one or more of a glycidyl azide monomer, an epoxide monomer, carbon dioxide, an initiator, and a Lewis acid in a reaction medium to form a glycidyl azide polymer.

Embodiments of the present disclosure describe a method of synthesizing a glycidyl azide homopolymer comprising contacting a glycidyl azide monomer, an initiator, and a Lewis acid sufficient to form the glycidyl azide homopolymer; wherein the glycidyl azide homopolymer is directly polymerized from the glycidyl azide monomer. Embodiments of the present disclosure further describe a method of making a glycidyl azide polymer comprising contacting one or more of a glycidyl azide monomer, an epoxide monomer, carbon dioxide, an initiator, and a Lewis acid in a reaction medium to form a glycidyl azide polymer.

The invention relates to a process for free radical-induced cationic frontal polymerization of cationically polymerizable monomers using a combination of at least one cationic polymerization initiator and at least one activator for said at least one initiator, characterized in that benzopinacol is used as said activator.

A Lewis acid polymerization catalyst has a general formula M(R.sup.1).sub.1(R.sup.2).sub.1(R.sup.3).sub.1(R.sup.4).sub.0 or 1, whereas M is boron, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independent, R.sup.1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R.sup.2 is the 3,5-bis(trifluoromethyl) substituted phenyl group or a first fluoro-substituted phenyl group selected from Set 1 structures, R.sup.3 is independently a second fluoro-substituted phenyl group selected from the Set 1 structures, and optional R.sup.4 includes a third functional group or functional polymer group.

A Lewis acid polymerization catalyst has a general formula M(R.sup.1).sub.1(R.sup.2).sub.1(R.sup.3).sub.1(R.sup.4).sub.0 or 1, whereas M is boron, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independent, R.sup.1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R.sup.2 is the 3,5-bis(trifluoromethyl) substituted phenyl group or a first fluoro-substituted phenyl group selected from Set 1 structures, R.sup.3 is independently a second fluoro-substituted phenyl group selected from the Set 1 structures, and optional R.sup.4 includes a third functional group or functional polymer group.

The present invention concerns a curable adhesive composition, wherein the composition is a two-component composition comprising: (A) an adhesive component comprising: (i) an aliphatic glycidyl ether; (ii) a cycloaliphatic epoxy and/or an aromatic glycidyl ether; and (iii) a silane reducing agent; and (B) a catalyst component comprising: (iv) a Group 9 or Group 10 noble metal catalyst, wherein the adhesive component (A) and/or the catalyst component (B) further comprises an initiator; articles coated by the composition or component compositions thereof; methods of bonding articles using the composition or component compositions thereof; and kits comprising the composition or component compositions thereof.

The present invention discloses polyglycol epoxide crosslinked sodium hyaluronate gel for injection and a preparation method thereof. A polyglycol epoxide is a compound with single molecular weight preferably; a plurality of ether bonds are present in the molecule of the polyglycol epoxide, the water solubility is good, and thus, the polyglycol epoxide is more easily subjected to a crosslinking reaction with polysaccharides; and meanwhile, polyglycol is relatively easy in adjustment of the number of repeating units and relatively easy in control of length, and thus, the sodium hyaluronate gel prepared by taking the polyglycol epoxide as a crosslinker is relatively easy in regulation and control of properties. The crosslinked sodium hyaluronate gel is low in toxicity, little in residual, small in squeezing and pushing force, good in shaping performance, good in enzyme resistance and long in in-vivo retention time. The present invention further discloses a mild crosslinker deactivation technology. Unreacted epoxide groups in the gel are subjected to a hydrolysis reaction in a carbonate buffer system with a pH of 8-9, so that the difficulty of impurity removal of the crosslinked sodium hyaluronate gel can be effectively lowered, and the problem of toxicity in the prior art due to the fact that BDDE is used in a crosslinking method is avoided.

The present invention discloses polyglycol epoxide crosslinked sodium hyaluronate gel for injection and a preparation method thereof. A polyglycol epoxide is a compound with single molecular weight preferably; a plurality of ether bonds are present in the molecule of the polyglycol epoxide, the water solubility is good, and thus, the polyglycol epoxide is more easily subjected to a crosslinking reaction with polysaccharides; and meanwhile, polyglycol is relatively easy in adjustment of the number of repeating units and relatively easy in control of length, and thus, the sodium hyaluronate gel prepared by taking the polyglycol epoxide as a crosslinker is relatively easy in regulation and control of properties. The crosslinked sodium hyaluronate gel is low in toxicity, little in residual, small in squeezing and pushing force, good in shaping performance, good in enzyme resistance and long in in-vivo retention time. The present invention further discloses a mild crosslinker deactivation technology. Unreacted epoxide groups in the gel are subjected to a hydrolysis reaction in a carbonate buffer system with a pH of 8-9, so that the difficulty of impurity removal of the crosslinked sodium hyaluronate gel can be effectively lowered, and the problem of toxicity in the prior art due to the fact that BDDE is used in a crosslinking method is avoided.

Disclosed are processes and systems for removing water and salt from a polyether polyol that employs a combination of at least atmospheric distillation, filtration, and vacuum distillation.