), and AA and 2-HEMA could act as functional monomers for crosslink. ... As a result, water resistance increased with the amount of BMA, however, the effect of BMA content on ... However, the heat resistance comes nearly up to the standard.
Acrylic resins (HSCs : EA/EMA/2-HEMA/CLA) which contain 80% solid content were synthesized by the copolymerization ... 1440~2630 cps ; Mn 1590~1660 ; and conversions, 81~86%, respectively. ... acrylate : CLA) which improves the crosslinking density and physical properties of films.
Acrylic resins (HSCs : EA/EMA/2-HEMA/CLA) which contain 70% solid content were synthesized by the copolymerization ... 245~515 cps ; Mn 2670~2840 ; and conversions, 83~91%, respectively. ... acrylate : CLA) which improves the crosslinking density and physical properties of films.
We measured physical properties such as water content, refractive index, tensile strength and spectral ... Results: The water content and refractive index did not show a significant difference in the combinations ... the water content and refractive index.
정신장애마다 각기 독특한 내용의 사고를 지닌다는 인지내용-특수성 가설(cognitive content-specificity hypothesis)을 제시함으로써 다양한 정신장애를 설명할 ... 우울증을 유발하는 근원적인 인지적 요인은 부적응적 인지도식(maladaptive schema)으로 이러한 도식은 완벽주의적이고 당위적이며 비현실적인 역기능적 신념으로 구성된다. ... Beck에 따르면, 이러한 자동적 사고의 내용은 현실을 과장하거나 왜곡한 것으로서 흑백논리,과잉일반화,개인화 등과 같은 다양한 인지적 오류(cognitive errors)가 개입한다
A copolymer 〈HSAs : EA/EMA/2-HEMA/AAEM) which is an acrylic resin containing 70% solid content was synthesized ... 203~550cps ; Mn, 2590~2850 ; and conversion, 82~89%, respectively. ... including ethyl acrylate, ethyl methacrylate, and 2-hydroxyethyl methacrylate with a functional monomer, such
The physical properties such as water content, refractive index, contact angel, spectral transmittance ... Results: Measurement of the physical characteristics of the copolymerized material showed the water content ... Conclusion: Based on the results of this study, the produced copolymers could be suitable for use as
In addition, both the tensile strength and the elongation at break increased with IDA content. ... 특히 [HEMA]: [IDA]:[H3PO4] = 3:4:4의 조성을 갖는 PS-b-PHEMA/IDA/H3PO4 블록 공중합체 전해질막은 100°C의 비가습 조건에서 최대 0.01 S ... increased as the content of H3PO4 increased.
In cases of contact lenses with added MPTS which showed that water content was 41.02~47.62% while the ... Results: Measurement of the physical properties of the DMA copolymer showed that the water content was ... for use as a material for high water content contact lenses.
HEMA에 MPC와 PEGMA를 혼합한 경우와 HEMA, MPC, PEGMA에 저함수 단 량체인 styrene을 추가한 경우를 비교하였다. ... Conclusion: When MPC and PEGMA were mixed together, the highest moisture content and the lowest contact ... Eight types of polymerized contact lenses and one omafilcon A on market were prepared for the samples
The physical properties such as water content, refractive index, spectral transmittance and contact angle ... Results: Measurement of the physical properties of the copolymerized polymer showed that water content ... of water content.
Top-down : their background knowledge, content schema, textual schema. ... Listening can be preview speaking. ? ... Listening was seen as a major source of comprehensible input. 3.
Also, the measurement of Ref. sample for hyaluronic acid showed that water content and contact angle ... Also, in case of the measurement of sample soaked in hyaluronic acid, the water content and contact angle ... Also, the physical properties such as water content and contact angel of produced contact lenses were
what content to focus on. ... Then, pre-teaching is necessary to activate students’ schema by brainstorming and learning vocabulary ... During the activity, it might be hard for children to make a question, so the teacher can support children
Also, the physical and optical properties such as refractive index, water content, spectral transmittance ... content. ... refractive index, water content, UV-B transmittance, contact angle and tensile strength were in the
On the other hand, syllabus design is focusing on the content selection and evaluation is on the learning ... one or more pretasks which is helpful to create interest, help build students’ schema, introduce key ... it is useful to create interest, help build students’ schema, introduce key vocabulary, and revise a
Results: Measurement of the physical properties of the copolymerized material showed that the water content ... The produced copolymer can be estimated to be suitable for usw as hydrogel contact lens material for ... Purpose: In this study, we compared the copolymer produced with the furfuryl isocyanate and Ag nanoparticle
Also, viscosity, solid content and peel strength were examined. ... ratio was relevant to commercial usage. ... BA), 2-ethyl hexyl acrylate (2-EHA), methyl methacrylate (MMA), and 2-hydroxy ethyl methacrylate (2-HEMA
After polymerization, the physical properties such as water content, refractive index, contact angle ... Results: The results of the measurement showed that the water content, refractive index, contact angle ... Methods: For manufacturing hydrogel lens, HEMA, NVP, MMA, wetting agent and a cross-linker EGDMA were