To provide a polycarbonate resin having an excellent hue and high heat stability, and a production method and a film thereof. The polycarbonate resin has a carbonate constituent unit represented by the following formula (A), wherein the resin contains a terminal group represented by the following formula (1) or (2) and 0.1 to 500 ppm of an aromatic monohydroxy compound. ##STR00001## (In the formula (1), R.sub.1 is an alkyl group having 6 to 15 carbon atoms which may be substituted.) ##STR00002## (In the formula (2), R.sub.2 and R.sub.3 are each independently an alkylene group having 1 to 12 carbon atoms which may be substituted. R.sub.4 is a hydrogen atom or alkyl group having 1 to 12 carbon atoms which may be substituted. n is an integer of 1 to 20.)

An endcapped polycarbonate, comprising thioether carbonyl endcaps of the formula

##STR00001##

wherein L is a C.sub.1-12 aliphatic or aromatic linking group, and R is a C.sub.1-20 alkyl, C.sub.6-18 aryl, or C.sub.7-24 arylalkylene.

Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

A binder resin composition comprising an aliphatic polycarbonate resin represented by the formula (1): ##STR00001##
and an end-capped aliphatic polycarbonate resin represented by the formula (2): ##STR00002##
wherein each of X and Y, which may be identical or different, is a group having at least one functional group selected from a carboxy group, an ester group, a carbamate group, a silicate group, an isocyanate group, an ether group, an acetal group, and a halogen atom at its end; and an inorganic particle-dispersed paste composition containing the resin composition. The binder resin composition of the present invention can be used in general molded articles, optical materials such as films, fibers, optical fibers, and optical disks, thermally decomposable materials such as ceramic binders, and lost foam casting, medicinal materials such as drug capsules, additives for biodegradable resins, main components for biodegradable resins, and the like.

Degradable polycarbonates network based bulk materials are provided. The bulk materials of the present disclosure may be produced having a wide range of tunable mechanical, physical, and thermal properties and are hydrolytically degradable. The bulk materials of the present disclosure may be suitable for the manufacture of a variety of sport fishing equipment or other equipment for water use or that may benefit from hydrolytic degradation in the environment.

Disclosed herein are crosslinked polycarbonates, composition thereof and methods thereof. The crosslinked polycarbonates can be prepared from allyl or epoxy polycarbonates. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

The present invention encompasses CO.sub.2-based polycarbonate polyols that do not degrade from the chain ends to form cyclic carbonate. Importantly, the inventive polyol compositions retain OH end group functionality desirable for thermoset applications.

The present invention relates to a polymerizable composition based on allyl carbonate monomers comprising: from 40% to 90% of a first reactive component (component A) comprising at least 50% by weight of diethylene glycol bis(allyl carbonate); from 10% to 60% of a second reactive component (component B) consisting of at least one compound having general formula (II)

##STR00001## or having general formula (III)

##STR00002## from 0.4 to 10.0 phm (parts by weight per 100 parts of the total weight of components A and B) of at least one peroxide radical initiator. The present invention also relates to the polymerized products that can be obtained from the above composition, their preparation process and their use as organic glass.

The present invention encompasses polymer compositions comprising aliphatic polycarbonate chains containing functional groups that increase the polymer's ability to wet or adhere to inorganic materials. In certain embodiments, chain ends of the aliphatic polycarbonates are modified to introduce silicon-containing functional groups, boron-containing functional groups, phosphorous-containing functional groups, sulfonic acid groups or carboxylic acid groups.

An object of this invention is to find a method for introducing a functional group into an aliphatic polycarbonate without impairing the excellent thermal decomposition property of the aliphatic polycarbonate. An aliphatic polycarbonate comprising a constituent unit represented by formula (1): ##STR00001##
wherein R.sup.1, R.sup.2, and R.sup.3 are identical or different, and each represents a hydrogen atom, a C.sub.1-10 alkyl group optionally substituted with one or more substituents, or a C.sub.6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R.sup.1 to R.sup.3, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring; and X represents a divalent group containing one or more heteroatoms or an alkylene group having 3 or more carbon atoms, and
a constituent unit represented by formula (2): ##STR00002##
wherein R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are identical or different, and each represents a hydrogen atom, a C.sub.1-10 alkyl group optionally substituted with one or more substituents, or a C.sub.6-20 aryl group optionally substituted with one or more substituents, wherein two groups from among R.sup.4 to R.sup.7, taken together with the carbon atom or carbon atoms to which these groups are attached, may form a substituted or unsubstituted, saturated or unsaturated 3- to 10-membered aliphatic ring, the content of the constituent unit represented by formula (1) being 0.1 mol % or more and 1.5 mol % or less, based on the total amount of the constituent units of formula (1) and formula (2).