Kedu ihe kpatara eji akpọ cellulose polymer?
Cellulose, nke a na-akpọkarị ya dị ka ihe mejupụtara ihe ọkụkụ dị n'ụwa, bụ ihe na-adọrọ adọrọ ma dị mgbagwoju anya nke nwere mmetụta dị ukwuu n'akụkụ dị iche iche nke ndụ, site na nhazi osisi ruo n'ichepụta akwụkwọ na textiles.
Iji ghọta ihe kpatara yacelluloseA na-ekewa ya dị ka polymer, ọ dị mkpa ịbanye n'ime ihe mejupụtara ya, ihe eji arụ ọrụ, na omume ọ na-egosipụta n'ogo macroscopic na microscopic. Site n'inyocha akụkụ ndị a nke ọma, anyị nwere ike ịkọwapụta ọdịdị polymer nke cellulose.
Ihe ndabere Chemistry Polymer:
Sayensị Polymer bụ ngalaba nke kemịkalụ na-ahụ maka ọmụmụ nke macromolecules, nke bụ nnukwu ụmụ irighiri ihe mejupụtara nkeji nhazi ugboro ugboro nke a maara dị ka monomers. Usoro nke polymerization gụnyere njikọ nke monomers ndị a site na njikọ covalent, na-akpụ agbụ ogologo ma ọ bụ netwọk.
Ọdịdị cellulose molekul:
Ihe mejupụtara cellulose bụ nke carbon, hydrogen, na atom oxygen, ndị a haziri n'usoro n'usoro yiri eriri. Ihe mgbochi ụlọ ya bụ isi, glucose molecule, na-eje ozi dị ka otu monomeric maka cellulose polymerization. Otu glucose ọ bụla n'ime agbụ cellulose jikọtara ya na nke ọzọ site na β (1→4) njikọ glycosidic, ebe otu hydroxyl (-OH) na carbon-1 na carbon-4 nke nkeji glucose dị n'akụkụ na-enweta mmeghachi omume condensation iji mepụta njikọ ahụ.
Ọdịdị nke cellulose polymer:
Nkeji ugboro ugboro: Njikọ β(1→4) glycosidic dị na cellulose na-ebute ugboro ugboro nke nkeji glucose n'akụkụ ụdọ polymer. Nkwughachi nke nkeji nhazi a bụ njirimara bụ isi nke polymers.
Ibu Molecular Dị Elu: Mkpụrụ ndụ cellulose nwere puku kwuru puku na nde nkeji glucose, na-eduga n'ịdị arọ dị elu nke ihe ndị na-emepụta polymer.
Ọdịdị Chain Ogologo: Nhazi ahịrị nke nkeji glucose dị na agbụ cellulose na-etolite agbụ mkpụrụ ndụ agbatịla ogologo oge, dịka njiri mara yinye yiri nke a na-ahụ na polymers.
Mkparịta ụka intermolecular: Mkpụrụ ndụ cellulose na-egosipụta njikọ nke hydrogen intermolecular n'etiti ụdọ ndị dị n'akụkụ, na-eme ka e guzobe microfibrils na akụkụ macroscopic, dị ka eriri cellulose.
Ngwongwo Mechanical: Ike igwe na ike siri ike nke cellulose, dị mkpa maka iguzosi ike n'ezi ihe nke mgbidi cell osisi, bụ nke sitere na ọdịdị polymer ya. Njirimara ndị a na-echetara ihe ndị ọzọ polymer.
Biodegradability: N'agbanyeghị ike ya, cellulose bụ ihe na-emebi emebi, na-enweta mmebi enzymatic site na cellulases, nke na-eme ka njikọ glycosidic dị n'etiti nkeji glucose, n'ikpeazụ na-agbaji polymer n'ime monomers mejupụtara ya.
Ngwa na mkpa:
Ụdị polymer nkecellulosena-akwado ngwa ya dị iche iche n'ofe ụlọ ọrụ dị iche iche, gụnyere akwụkwọ na pulp, textiles, pharmaceuticals, na ume ọhụrụ. A na-eji ihe ndị sitere na cellulose kpọrọ ihe n'ihi ụbara ha, biodegradability, mmeghari ohuru, na ntụgharị, na-eme ka ha dị mkpa na ọha mmadụ nke oge a.
cellulose tozuru oke dị ka polymer n'ihi usoro ihe omimi ya, nke na-agụnye nkeji glucose ugboro ugboro jikọtara ya na β (1→4) glycosidic bonds, na-ebute agbụ ogologo nwere nnukwu molekul. Ọdịdị polymer ya na-egosipụta n'ụdị dị iche iche, gụnyere nhazi nke ụdọ molekụla agbatị, mmekọrịta intermolecular, ihe eji arụ ọrụ, na biodegradability. Ịghọta cellulose dị ka polymer bụ ihe dị mkpa maka iji ọtụtụ ngwa ya na ijikwa ikike ya na teknụzụ na ihe ndị na-adịgide adịgide.
Oge nzipu: Eprel-24-2024